Free backlink sites list: 1,964 places to get a link
A maintained list of 1,964 legitimate backlink sites: directories, profile creation sites, guest posting sites, launch platforms, registries and marketplaces. 1,628 are free or have a free tier, 44 usually give a dofollow link, and 781 have an estimated DA of 70 or more. Every row shows authority, link type, cost and effort, and links straight to the submit page.
- 1,964
- Opportunities
- 1,628
- Free or freemium
- 781
- Est. DA 70+
- 208
- Quick wins
All filters2
The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.
| # | Impact (sorted) | Site — sort by this | Est. DA — sort by this | Link | Domain | Type | Cost | Effort — sort by this | Priority | Status | What to prepare | Rules / caveat | Checked | Actions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 100 | CycloneDX Tool Center | 55 | Link type unknown | cyclonedx.org | Software directories | Free | Quick | Do first | Verified live | Add standards-valid CycloneDX support, then submit the structured your tool entry through the official contribution workflow. | Must accurately state supported CycloneDX versions, functions and licensing; a listing is not product certification. | 2026-08-05 official CycloneDX Tool Center | Open CycloneDX Tool Center submit page (new tab)CycloneDX Tool Center details |
| 2 | 100 | FreeNoSignup | — | Link type unknown | freenosignup.com | Software directories | Free | Quick | Do first | Verified live | Submit one or more free your tool utilities that work without registration. | Tool must be active, useful, web-based, privacy-respecting and usable without signup. | 2026-08-05 | Open FreeNoSignup submit page (new tab)FreeNoSignup details |
| 3 | 98 | NoSignupTools | — | Link type unknown | nosignuptools.com | Software directories | Free | Moderate | Do first | Verified live | Submit individual your tool tools that are free, secure and usable without registration. | Core functionality must be free, publicly accessible and safe; manual quality review applies. | 2026-08-05 | Open NoSignupTools submit page (new tab)NoSignupTools details |
| 4 | 98 | SPDX Tool Supplier Directory | 55 | Link type unknown | spdx.dev | Software directories | Free | Moderate | Do first | Verified live | Make your tool generate or consume valid SPDX, document validation, then file the requested supplier-information issue with its canonical URL. | Real validated SPDX support is required; listing is reviewed and explicitly is not certification or endorsement. | 2026-08-05 official SPDX Tool Supplier Information page | Open SPDX Tool Supplier Directory submit page (new tab)SPDX Tool Supplier Directory details |
| 5 | 95 | Console.dev | 50 | Sometimes dofollow | console.dev | Software directories | Free | Involved | Do first | Verified live | Email the strongest developer-focused your tool feature with a self-service demo, documentation, privacy model, and concise reason it is novel. | Primary users must be developers; the tool should be high quality, fast, maintained, documented, privacy-safe, and independently interesting. | https://console.dev/selection-criteria | Open Console.dev submit page (new tab)Console.dev details |
| 6 | 95 | Softpedia | 90 | Nofollow | softpedia.com | Software directories | Free | Involved | Do first | Verified live | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow. | 2026-07-30 • https://www.submission.directory/site/softpedia | Open Softpedia submit page (new tab)Softpedia details |
| 7 | 88 | W3C Web Accessibility Evaluation Tools List | 95 | Link type unknown | w3.org | Software directories | Paid | Moderate | Do first | Verified live | Submit one released evaluator such as WCAG Quick Auditor with accurate standards, scope, license, release date, and accessibility-statement details. | Must actually evaluate digital accessibility or simulate user experience; remediation tools, checklists, assistive technology, and best-practice pages are excluded. W3C reviews submissions in roughly 2–4 weeks and listing never implies endorsement. | 2026-08-03 | Open W3C Web Accessibility Evaluation Tools List submit page (new tab)W3C Web Accessibility Evaluation Tools List details |
| 8 | 86 | Cybil Knowledge Portal | 40 | Link type unknown | cybilportal.org | Software directories | Free | Quick | High | Verified live | Submit a genuine international cyber-capacity-building project, tool, publication or webinar with evidence and a live resource URL. | Portal staff curate and may validate with participants; must have direct cyber-capacity-building relevance, not be a generic product listing. | 2026-08-05 — https://cybilportal.org/submit-your-cyber-capacity-building-projects/ | Open Cybil Knowledge Portal submit page (new tab)Cybil Knowledge Portal details |
| 9 | 86 | Toolradar | — | Link type unknown | toolradar.com | Software directories | Free | Quick | High | Verified live | Create an your tool product page for discovery, comparison, and reviews. | Vendor account and truthful product details required. | https://toolradar.com/vendors | Open Toolradar submit page (new tab)Toolradar details |
| 10 | 86 | Wikimedia Toolhub | 95 | Link type unknown | toolhub.wikimedia.org | Software directories | Free | Quick | High | Verified live | Build a tool that genuinely interacts with Wikimedia, publish accurate toolinfo.json metadata, and register it through Toolhub UI, crawler, or API. | Must serve Wikimedia projects; Wikimedia login is required and submitted metadata is CC0; unrelated utilities do not qualify. | Official Wikimedia developer search and Toolhub documentation checked 2026-08-05 | Open Wikimedia Toolhub submit page (new tab)Wikimedia Toolhub details |
| 11 | 84 | Business Tool Vault | — | Link type unknown | businesstoolvault.com | Software directories | Free | Moderate | High | Verified live | Submit your tool with a clear business use case, logo and optional demo video. | Team reviews effectiveness, relevance and completeness before inclusion. | 2026-08-05 | Open Business Tool Vault submit page (new tab)Business Tool Vault details |
| 12 | 84 | CodeMeta Tools | 40 | Link type unknown | codemeta.github.io | Software directories | Free | Moderate | High | Verified live | Build a current CodeMeta validator, privacy linter, or integration and propose inclusion through the official website repository. | Must genuinely consume or produce CodeMeta; inclusion path is via community site contribution, not a dedicated form. | Official tools, governance, and website-repository pages checked 2026-08-05 | Open CodeMeta Tools submit page (new tab)CodeMeta Tools details |
| 13 | 84 | Dockstore | 50 | Link type unknown | dockstore.org | Software directories | Free | Moderate | High | Verified live | Publish a containerized your tool research workflow or tool using CWL, WDL, Nextflow, Galaxy, or a supported notebook descriptor. | Requires a Dockstore account, valid descriptor and version, linked source repository or hosted files, tests, and explicit public publishing. | 2026-08-05 — https://docs.dockstore.org/en/develop/getting-started/dockstore-workflows.html | Open Dockstore submit page (new tab)Dockstore details |
| 14 | 84 | GetLatka | 70 | Nofollow | getlatka.com | Software directories | Free | Moderate | High | Verified live | Create an your tool company profile using an official your tool email. | Work email must match the company domain; team reviews submissions. | https://getlatka.com/add | Open GetLatka submit page (new tab)GetLatka details |
| 15 | 84 | Hot Softwares | — | Link type unknown | hotsoftwares.com | Software directories | Free | Moderate | High | Verified live | Create a vendor account and submit accurate your tool features, logo and pricing. | Manual review; keep the listing factual and avoid manufactured reviews. | 2026-08-05 | Open Hot Softwares submit page (new tab)Hot Softwares details |
| 16 | 84 | OMR Reviews | 70 | Link type unknown | omr.com | Software directories | Free | Moderate | High | Verified live | Suggest your tool and complete its B2B software profile. | Must fit a supported B2B software category; OMR reviews the suggestion. | https://omr.com/en/reviews/b2b/list-software | Open OMR Reviews submit page (new tab)OMR Reviews details |
| 17 | 84 | Toolhunt | — | Link type unknown | toolhunt.dev | Software directories | Free | Moderate | High | Verified live | Email a complete your tool listing with a concise description, URL, tags, pricing, logo, screenshots and real features. | Publisher reviews submissions; supply accurate assets and avoid exaggerated claims. | 2026-08-04 | Open Toolhunt submit page (new tab)Toolhunt details |
| 18 | 84 | Typst Universe | 60 | Link type unknown | typst.app | Software directories | Free | Moderate | High | Verified live | Build a reusable Typst privacy, accessibility, or document-checking package with a valid manifest, docs, examples, and tests, then submit it to the official packages repository. | Package must provide real reusable Typst functionality; namespace, versioning, documentation, licensing, and review rules apply. | Official Typst packages repository and Universe instructions checked 2026-08-05 | Open Typst Universe submit page (new tab)Typst Universe details |
| 19 | 84 | Zenodo | 85 | Nofollow | zenodo.org | Software directories | Free | Moderate | High | Verified live | Publish a genuine open your tool dataset, benchmark, software release, poster, or reproducible research artifact and connect its related identifier to your tool. | Not for marketing PDFs. Upload a reusable artifact with accurate creators, license, metadata, and persistent record. | https://help.zenodo.org/docs/deposit/create-new-upload/ | Open Zenodo submit page (new tab)Zenodo details |
| 20 | 81 | CybersecTools | — | Link type unknown | cybersectools.com | Software directories | Free + paid tier | Moderate | High | Verified live | Submit a security-focused your tool product or tool for editorial classification. | Must be a cybersecurity product; free links are nofollow and review can take two weeks. | 2026-08-05 | Open CybersecTools submit page (new tab)CybersecTools details |
| 21 | 81 | SaaS Hub Directory | — | Link type unknown | saashubdirectory.com | Software directories | Free | Involved | High | Verified live | Create an account and submit your tool with its privacy, security and utility use cases plus the homepage link. | Login required; editorial fit and quality review; describe only working features. | 2026-08-03 | Open SaaS Hub Directory submit page (new tab)SaaS Hub Directory details |
| 22 | 78 | PrivacyFest | — | Link type unknown | privacyfest.org | Software directories | Free + paid tier | Involved | High | Verified live | Submit the strongest privacy-first your tool module with jurisdiction, open-source and audit details. | No pay-to-play; privacy claims, encryption and audit status must be accurate and supportable. | 2026-08-03 | Open PrivacyFest submit page (new tab)PrivacyFest details |
| 23 | 78 | Saaspo | 40 | Link type unknown | saaspo.com | Software directories | Free + paid tier | Involved | High | Verified live | Submit the polished your tool landing/tool UI with clean screenshots and design credits. | Editorial/design review applies; submit only polished, relevant work. Listing link is currently reported nofollow. | 2026-07-30 • https://www.submission.directory/site/saaspo | Open Saaspo submit page (new tab)Saaspo details |
| 24 | 78 | scriptbyai.com | 30 | Link type unknown | scriptbyai.com | Software directories | Free + paid tier | Involved | High | Verified live | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow. | 2026-07-30 • https://www.submission.directory/site/scriptbyai-com | Open scriptbyai.com submit page (new tab)scriptbyai.com details |
| 25 | 77 | Digitool | — | Link type unknown | digitool.co | Software directories | Not stated | Involved | High | Verified live | Create an account and submit your tool with truthful product details and screenshots. | Login and ownership authorization required; editorial review may take up to seven days. | 2026-08-05 | Open Digitool submit page (new tab)Digitool details |
| 26 | 71 | SaaSGenius | — | Link type unknown | saasgenius.com | Software directories | Paid | Involved | High | Verified live | Submit your tool as a production SaaS and request a reviewed product profile. | No B2C-only, alpha/beta, standalone mobile-only, or products without US customers. | https://www.saasgenius.com/get-listed/ | Open SaaSGenius submit page (new tab)SaaSGenius details |
| 27 | 68 | bio.tools | 55 | Link type unknown | bio.tools | Software directories | Free | Quick | Medium | Verified live | Register a genuinely life-science-focused your tool resource with stable homepage, scientific operations, inputs, outputs, licence, and documentation. | Must perform a credible bioinformatics or life-science function; medical branding alone is insufficient and EDAM metadata is expected. | 2026-08-05 — https://biotools.readthedocs.io/en/latest/quickstart_guide.html | Open bio.tools submit page (new tab)bio.tools details |
| 28 | 68 | CapRover One-Click Apps | 50 | Link type unknown | caprover.com | Software directories | Free | Quick | Medium | Verified live | Create a tested CapRover one-click definition for a real self-hosted your tool service and contribute it to the linked official community repository. | The directory is community-maintained; use safe defaults, document required variables and persistence, and keep images and deployment instructions current. | Official CapRover one-click app documentation and repository checked 2026-08-05 | Open CapRover One-Click Apps submit page (new tab)CapRover One-Click Apps details |
| 29 | 68 | Chanakya Software | — | Link type unknown | chanakyasoftware.com | Software directories | Free | Quick | Medium | Verified live | Create a vendor account and list your tool software offering. | Provide genuine vendor, website, software, and service details. | https://www.chanakyasoftware.com/list-your-software | Open Chanakya Software submit page (new tab)Chanakya Software details |
| 30 | 68 | Common Workflow Language | 55 | Link type unknown | commonwl.org | Software directories | Free | Quick | Medium | Verified live | Build a genuine CWL validator, security tool, or implementation and propose its inclusion with compliance evidence. | Must actually support CWL; the community-maintained listing does not constitute formal certification. | Official CWL implementation page and website repository checked 2026-08-05 | Open Common Workflow Language submit page (new tab)Common Workflow Language details |
| 31 | 68 | CreativesFeed | 40 | Link type unknown | creativesfeed.com | Software directories | Free | Quick | Medium | Verified live | Submit relevant your tool utilities under AI, web, or developer categories. | Only submit tools matching available creative, AI, or development categories. | https://creativesfeed.com/contact/submit-your-software/free-software-listing/ | Open CreativesFeed submit page (new tab)CreativesFeed details |
| 32 | 68 | F-Droid | 75 | Link type unknown | f-droid.org | Software directories | Free | Quick | Medium | Verified live | Publish a privacy-respecting open-source Android companion app, then file a packaging request or merge request. | App must be source-buildable, useful and actively maintained, with no proprietary tracking, ads or non-free dependencies. | Official F-Droid inclusion policy checked 2026-07-30 | Open F-Droid submit page (new tab)F-Droid details |
| 33 | 68 | LineZine | 20 | Link type unknown | linezine.com | Software directories | Free | Quick | Medium | Verified live | Choose the free listing or purchase a dedicated your tool product page. | Free clicks are redirected/nofollow; paid option provides a dedicated dofollow page. | https://linezine.com/list-your-tool | Open LineZine submit page (new tab)LineZine details |
| 34 | 68 | Research Software Directory | 35 | Link type unknown | research-software-directory.org | Software directories | Free | Quick | Medium | Verified live | Request access, then publish a rich your tool research-software page with source, getting-started URL, DOI, contributors, and research mentions. | Only for genuine research software with evidence and public source or releases; truthful affiliation and ORCID information are required. | 2026-08-05 — https://research-software-directory.org/documentation/users/adding-software/ | Open Research Software Directory submit page (new tab)Research Software Directory details |
| 35 | 68 | Tolodora | — | Link type unknown | tolodora.com | Software directories | Free | Quick | Medium | Verified live | Add your tool as a SaaS or online service with its official URL. | Use accurate categories and avoid duplicate or promotional spam entries. | https://tolodora.com/ | Open Tolodora submit page (new tab)Tolodora details |
| 36 | 66 | Apps and Reports | — | Link type unknown | appsandreports.com | Software directories | Free | Moderate | Medium | Verified live | Register as your tool vendor and add its software/service profile. | Business and product information must be verifiable. | https://www.appsandreports.com/vendor-registration | Open Apps and Reports submit page (new tab)Apps and Reports details |
| 37 | 66 | Codidact Power Users | 40 | Nofollow | codidact.org | Software directories | Free | Moderate | Medium | Verified live | Answer real end-user software or privacy questions in depth and reference a specific your tool page only when it materially completes the answer. | Disclose affiliation; irrelevant or undisclosed product promotion is spam, and manufactured questions or generic link drops are prohibited. | Official Codidact signup and help guidance checked 2026-08-07 | Open Codidact Power Users submit page (new tab)Codidact Power Users details |
| 38 | 66 | DHIS2 App Hub | 55 | Link type unknown | apps.dhis2.org | Software directories | Free | Moderate | Medium | Verified live | Build a generic DHIS2 health-data de-identification or permission-audit app and submit it to App Hub for core-team review. | Must be useful across DHIS2 implementations, open source, documented, secure, performant, and free of advertising or hidden collection. | Official DHIS2 App Hub publishing and review guidelines checked 2026-08-05 | Open DHIS2 App Hub submit page (new tab)DHIS2 App Hub details |
| 39 | 66 | EVERSE Research Software Quality Kit | — | Link type unknown | everse.software | Software directories | Free | Moderate | Medium | Verified live | Discuss a substantive your tool-backed research-software quality task or resource with the Editorial Board, then contribute through its approved workflow. | Significant content should be discussed first; contribution must teach reusable practice rather than advertise. | Official RSQKit contribution and editorial guides checked 2026-08-05 | Open EVERSE Research Software Quality Kit submit page (new tab)EVERSE Research Software Quality Kit details |
| 40 | 66 | HAL Open Science | 85 | Link type unknown | hal.science | Software directories | Free | Moderate | Medium | Verified live | Deposit a research-level open-source your tool component or related preprint/report with accurate project and source links. | Research-software or scholarly output only; accurate authorship, affiliation, rights, licence and metadata; deposits may be reviewed and cannot be self-deleted after acceptance. | 2026-08-05 — https://doc.hal.science/en/deposer/deposer-le-code-source/ | Open HAL Open Science submit page (new tab)HAL Open Science details |
| 41 | 66 | Journal of Open Source Education | 40 | Link type unknown | jose.theoj.org | Software directories | Free | Moderate | Medium | Verified live | Package a complete computational privacy or accessibility learning module and submit its reusable artifact plus Markdown paper. | Artifact must be feature-complete, immediately reusable, openly licensed, documented, and demonstrate teaching value. | 2026-08-05 — https://openjournals.readthedocs.io/en/jose/submitting.html | Open Journal of Open Source Education submit page (new tab)Journal of Open Source Education details |
| 42 | 66 | SaaSQuiver | — | Link type unknown | saasquiver.com | Software directories | Free | Moderate | Medium | Verified live | Submit your tool product, website, owner, and category information. | Requires accurate owner/contact details and a live SaaS product. | https://www.saasquiver.com/saas/submit | Open SaaSQuiver submit page (new tab)SaaSQuiver details |
| 43 | 66 | SoftwareMarket | — | Link type unknown | softwaremarket.com | Software directories | Free | Moderate | Medium | Verified live | Register your tool and complete the product, company, and category fields. | Submitter must be authorized by the software owner; manual review. | https://www.softwaremarket.com/list-your-software | Open SoftwareMarket submit page (new tab)SoftwareMarket details |
| 44 | 66 | switching.software | 50 | Link type unknown | switching.software | Software directories | Free | Moderate | Medium | Verified live | Suggest one mature your tool utility through the official Codeberg issue path only if it is an easy-to-use, privacy-respecting replacement for a clearly identified invasive service. | The project must be meaningfully more privacy-conscious and ethical while remaining usable by nontechnical people; many listed alternatives are free/open source. Community review applies and inclusion is not guaranteed. | 2026-08-03 | Open switching.software submit page (new tab)switching.software details |
| 45 | 66 | Teach Access | 50 | Link type unknown | teachaccess.org | Software directories | Free | Moderate | Medium | Verified live | Contribute a substantive accessibility role template, translation or toolkit improvement with useful source attribution. | Must fit the toolkit’s structure and open-source purpose; contextual attribution only, not a promotional entry. | 2026-08-05 — https://www.teachaccess.org/resources/accessibility-skills-hiring-toolkit/ | Open Teach Access submit page (new tab)Teach Access details |
| 46 | 65 | AppInsight | — | Link type unknown | appinsight.co.uk | Software directories | Free + paid tier | Quick | Medium | Verified live | Request a free listing with your tool logo, name, slogan, short description, website and best-fit category. | Human-curated and limited to one category on the free tier; timing is not guaranteed and richer links/features require an upgrade. | 2026-08-03 • https://www.appinsight.co.uk/sellers/free-listing | Open AppInsight submit page (new tab)AppInsight details |
| 47 | 65 | BIII BioImage Informatics Index | 40 | Link type unknown | biii.eu | Software directories | Free + paid tier | Quick | Medium | Verified live | Register a real bioimage privacy, de-identification, or analysis tool with accurate scientific functions, documentation, and maintainers. | Tool must genuinely solve a bioimage-analysis problem; registration and community curation apply. | Official BIII about and contribution information checked 2026-08-05 | Open BIII BioImage Informatics Index submit page (new tab)BIII BioImage Informatics Index details |
| 48 | 65 | DevApp Showcase | — | Link type unknown | devappshowcase.com | Software directories | Free + paid tier | Quick | Medium | Verified live | List your tool with live URL, icon, screenshots, category and an optional repository/demo video. | Submit a functional app with original assets; paid promotion is optional, not required. | 2026-08-03 | Open DevApp Showcase submit page (new tab)DevApp Showcase details |
| 49 | 65 | OpenSaaS Directory | — | Link type unknown | opensaas.directory | Software directories | Free + paid tier | Quick | Medium | Verified live | Submit a public your tool open-source repository and product description after a reusable component is released. | Requires a genuine open-source SaaS project; do not submit the proprietary site as open source. | 2026-08-03 | Open OpenSaaS Directory submit page (new tab)OpenSaaS Directory details |
| 50 | 65 | Tool Commons | — | Link type unknown | toolcommons.org | Software directories | Free + paid tier | Quick | Medium | Verified live | Release one standalone your tool utility as open source, ad-free and local-first, then submit via GitHub. | Strictly requires no login, no ads/tracking, static hosting and a single-purpose open-source tool. | 2026-08-03 | Open Tool Commons submit page (new tab)Tool Commons details |
| 51 | 63 | Figshare | 90 | Nofollow | figshare.com | Software directories | Free + paid tier | Moderate | Medium | Verified live | Publish a genuine your tool benchmark, dataset, software artifact, poster, or methods report with the canonical project URL in metadata. | Academic/research output only; public items receive persistent DOIs and should not be deleted or used as promotional shells. | https://info.figshare.com/user-guide/what-is-figshare/ | Open Figshare submit page (new tab)Figshare details |
| 52 | 63 | PhysioNet | 75 | Link type unknown | physionet.org | Software directories | Free | Involved | Medium | Verified live | Publish a clinical-data de-identification or quality tool with source, installation steps, dependencies, documentation, and tests. | Must support credible biomedical research, use an accepted open-source license, and pass editorial review. | Official PhysioNet publishing guide checked 2026-08-05 | Open PhysioNet submit page (new tab)PhysioNet details |
| 53 | 63 | TechSuggest | — | Link type unknown | techsuggest.in | Software directories | Free + paid tier | Moderate | Medium | Verified live | Create an your tool vendor account targeting Indian software buyers. | Vendor verification required; best suited to B2B software. | https://techsuggest.in/vendor/benefits | Open TechSuggest submit page (new tab)TechSuggest details |
| 54 | 63 | Zuctools | — | Link type unknown | zuctools.site | Software directories | Free + paid tier | Moderate | Medium | Verified live | Use the Submit Tool flow with your tool URL, pricing, categories, original description and icon. | Submitted details may be edited for clarity; verify the live submit page before sending. | 2026-08-03 | Open Zuctools submit page (new tab)Zuctools details |
| 55 | 62 | SaaS Podium | — | Link type unknown | saaspodium.com | Software directories | Not stated | Moderate | Medium | Verified live | Submit your tool with logo, pricing model, concise tagline and a unique product description. | All submissions are reviewed; verify current terms before submitting and do not assume link attributes. | 2026-08-03 | Open SaaS Podium submit page (new tab)SaaS Podium details |
| 56 | 60 | Awesome Indie | — | Link type unknown | awesomeindie.com | Software directories | Free + paid tier | Involved | Medium | Verified live | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/awesome-indie | Open Awesome Indie submit page (new tab)Awesome Indie details |
| 57 | 60 | FindersList | — | Link type unknown | finderslist.com | Software directories | Free + paid tier | Involved | Medium | Verified live | Submit your tool to the best-fit software directory with truthful pricing and unique copy. | Editorial review applies; avoid irrelevant categories and affiliate-style claims. | 2026-08-03 | Open FindersList submit page (new tab)FindersList details |
| 58 | 60 | ThatsMyAI | — | Link type unknown | thatsmy.ai | Software directories | Free + paid tier | Involved | Medium | Verified live | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow. | 2026-07-30 • https://www.submission.directory/site/thatsmyai | Open ThatsMyAI submit page (new tab)ThatsMyAI details |
| 59 | 59 | SaaS Avenue | — | Link type unknown | saasavenue.com | Software directories | Not stated | Involved | Medium | Verified live | Use the site's Submit Your Product flow for your tool. | Listing is subject to editorial review; submission does not guarantee publication. | https://saasavenue.com/ | Open SaaS Avenue submit page (new tab)SaaS Avenue details |
| 60 | 56 | Journal of Open Research Software | 55 | Link type unknown | openresearchsoftware.metajnl.com | Software directories | Paid | Moderate | Medium | Verified live | Open-source a reusable research-focused your tool component, archive it with a persistent identifier, and submit a software metapaper with project/code links. | Software must be openly licensed, public, usable, documented, archived and relevant to research; metapaper and software undergo peer review. | 2026-08-05 — https://openresearchsoftware.metajnl.com/about/submissions | Open Journal of Open Research Software submit page (new tab)Journal of Open Research Software details |
| 61 | 53 | Journal of Statistical Software | 70 | Link type unknown | jstatsoft.org | Software directories | Paid | Involved | Medium | Verified live | Develop an open statistical/privacy-analysis component, then submit a reproducible English LaTeX software paper linking its code and your tool project page. | Only statistical-computing software with publishable scholarly value; authors must supply software/replication material and handle strict formatting and peer review. | 2026-08-05 — https://www.jstatsoft.org/authors | Open Journal of Statistical Software submit page (new tab)Journal of Statistical Software details |
| 62 | 53 | RO-Crate Community Blog | 40 | Link type unknown | researchobject.org | Software directories | Paid | Involved | Medium | Verified live | Build a genuine RO-Crate validator or privacy linter and submit a technical developer article using the official blog template. | Article must concern practical RO-Crate use or tooling; editorial acceptance is required and product-only promotion is unsuitable. | Official RO-Crate blog contribution announcement checked 2026-08-05 | Open RO-Crate Community Blog submit page (new tab)RO-Crate Community Blog details |
| 63 | 46 | Astrophysics Source Code Library | 55 | Link type unknown | ascl.net | Software directories | Free | Moderate | Later | Verified live | Submit an your tool-related astronomy utility only after it has been used in research submitted to or published by a refereed journal. | Strict astronomy or astrophysics scope; code must be accessible, research-used, complete, moderated, and supported by a paper reference. | 2026-08-05 — https://ascl.net/code/submit | Open Astrophysics Source Code Library submit page (new tab)Astrophysics Source Code Library details |
| 64 | 46 | CSDMS Model Repository | 90 | Link type unknown | csdms.colorado.edu | Software directories | Free | Moderate | Later | Verified live | Open-source a relevant geoscience model or component, complete the model questionnaire, and provide its code archive for CSDMS testing. | Must be an actual Earth-surface or geoscience model; staff may compile and run it, and BMI compatibility is encouraged. | Official CSDMS contribute-model guide checked 2026-08-05 | Open CSDMS Model Repository submit page (new tab)CSDMS Model Repository details |
| 65 | 46 | OpenEBench | 40 | Link type unknown | openebench.bsc.es | Software directories | Free | Moderate | Later | Verified live | Organize a rigorous life-science privacy-tool benchmark or participate with an eligible your tool method and publish validated results. | Requires a scientific community, formal challenge metadata, reference data, containerized metrics workflow, assigned role, and OpenEBench support review. | 2026-08-05 — https://openebench.readthedocs.io/en/latest/how_to/4_manage_events.html | Open OpenEBench submit page (new tab)OpenEBench details |
| 66 | 46 | pyOpenSci | 45 | Link type unknown | pyopensci.org | Software directories | Free | Moderate | Later | Verified live | Submit a mature scientific Python package related to an your tool privacy or accessibility workflow for public review and listing. | Must support open science, have sustained public development, packaging, tests, docs, human-reviewed code, and a maintenance commitment. | 2026-08-05 — https://www.pyopensci.org/software-peer-review/our-process/policies.html | Open pyOpenSci submit page (new tab)pyOpenSci details |
| 67 | 46 | rOpenSci | 70 | Link type unknown | ropensci.org | Software directories | Free | Moderate | Later | Verified live | If your tool produces a research-grade R package, submit a presubmission inquiry and the package for open review. | Package must fit rOpenSci scope, avoid overlap, meet testing and lifecycle policies, and remain actively maintained. | 2026-08-05 — https://devguide.ropensci.org/softwarereview_author.html | Open rOpenSci submit page (new tab)rOpenSci details |
| 68 | 46 | ROS Index | 70 | Link type unknown | index.ros.org | Software directories | Free | Moderate | Later | Verified live | Build a real ROS package for an your tool robotics/privacy/safety workflow, release it through rosdistro and expose maintained README, documentation and source links in ROS Index. | Must provide genuine ROS functionality and follow repository, metadata and release conventions; a branded launcher without robot-facing value will be rejected. | 2026-08-05 | Open ROS Index submit page (new tab)ROS Index details |
| 69 | 43 | Journal of Open Source Software | 60 | Link type unknown | joss.theoj.org | Software directories | Free | Involved | Later | Verified live | Submit a qualifying open your tool research-software component and short software paper after it has mature public development history. | Requires OSI licence, public source and issues, tests, documentation, research use, contributor authorship, and editorial review. | 2026-08-05 — https://joss.readthedocs.io/en/latest/submitting.html | Open Journal of Open Source Software submit page (new tab)Journal of Open Source Software details |
| 70 | 43 | NITRC | 55 | Link type unknown | nitrc.org | Software directories | Free + paid tier | Moderate | Later | Verified live | Register an actual neuroimaging privacy, quality-control, or data-processing tool through NITRC's resource workflow. | Must have substantive neuroimaging or neuroscience relevance; account registration and moderation apply. | Official NITRC project and registered-resource pages checked 2026-08-05 | Open NITRC submit page (new tab)NITRC details |
| 71 | 42 | UpRank | — | Link type unknown | uprank.com | Software directories | Not stated | Moderate | Later | Verified live | Submit your tool for manual inclusion in the software directory. | Manually vetted; acceptance and category fit are discretionary. | https://uprank.com/list-your-business | Open UpRank submit page (new tab)UpRank details |
How to build backlinks with this list
Four steps that work for a new site, a SaaS or a side project. No paid link packages, nothing that risks a penalty.
Get the basics right first
Before submitting anywhere, have a one-line description, a 150-word description, a square logo and two or three screenshots ready. Every form asks for some mix of these.
Claim profiles and free listings
Start with the free, quick rows: profile creation sites and free directories. They are one form each and build the entity signals search engines use to understand who you are.
Go after a few strong links
Then pick a handful of high DA and dofollow sites that fit your niche, and write proper guest posts or launch posts for them. Ten relevant links beat a hundred random ones.
Track and keep it clean
Note where you submitted and when. Recheck after a month, update stale descriptions, and never pay for bulk link packages: they put the whole site at risk.
Behind the list
A link opportunity is not a link.
Every row here starts as a line in a sheet, gets normalised into one of 16 groups, scored for cost, effort and impact, and written up with the steps to actually submit. The floor below represents that pipeline.
Open the sheet viewAn illustration of the AltF Backlinks floor: opportunities sourced at the back, vetted for cost and effort by the engineering pod, written up for outreach by the design pod, then tracked to placement along a line.
Backlink sites by category
Product launch sites87
One-shot launches where timing and preparation decide the outcome.
Guest posting sites55
Publications that accept contributed articles. Slow and editorial, but the links are earned.
AI tool directories200
Fast-growing listings specifically for AI-powered tools.
App stores and marketplaces273
Extension, plugin and integration stores. Real review processes, real distribution.
Startup directory submission sites120
Startup listings, beta lists and founder media.
Software directory submission sites215
General tool and software catalogues with real search traffic.
Software review sites29
B2B review sites. Slow to approve, strong once live.
Developer platforms for backlinks139
Package, image and docs hosting that carries real authority.
Web design galleries for backlinks87
Showcases judged on craft. A good screenshot matters more than copy.
Web 2.0 and publishing sites214
Write once, link back. Editorial standards vary widely.
PR and press release sites41
Get quoted or distribute a release. Slower, higher ceiling.
Business directory submission sites109
Company and local listings. Unglamorous, consistently indexed.
Profile creation sites163
Owned pages you control: company, founder, knowledge-panel entities.
Forum and community backlink sites61
Answer real questions. Never drop a bare link.
Social bookmarking sites18
Brand surface and referral traffic more than link equity.
More backlink opportunities153
Everything that does not fit the buckets above.
Common questions
Do backlinks still matter for ranking in 2026?
Links remain one signal among many, and low-quality bulk links do more harm than good. What still works is being listed where your buyers actually look — directories with real traffic, registries your peers use, and launch platforms with engaged audiences. Every entry in this list is a place a human might plausibly find you, which is why they are worth submitting to regardless of link equity.
Which submissions should I do first?
Start with the quick wins filter: free, low effort, and not in the lowest priority band. 208 of the 1,964 entries qualify, and those are the ones where a single form submission gets you a live listing the same week. Launch platforms are worth saving until your product is genuinely ready, because you only get one good attempt at each.
How is the impact score calculated?
It starts from a hand-assigned priority band (do first, high, medium, later), then adjusts for cost and effort. A free, quick opportunity scores above a paid, involved one in the same band, because it is the one you can realistically finish today. The score is a queueing aid, not a measure of domain authority.
Are these links free?
1,628 of the 1,964 entries are free to submit to or offer a free tier that includes a listing. Cost is shown on every row, and the "nothing to pay" filter narrows the list to exactly those.
Which backlink sites are dofollow?
44 entries are known to give a followed link on a normal listing, and more give one only in some placements. The link type is shown on every row and can be filtered. Sites change their link policy without notice, so treat the label as a starting point and check the live page after you are listed. A nofollow link from a busy site still sends visitors and helps search engines discover you.
What does the DA number mean?
It is our estimate of the site's domain authority, a third-party style 0-100 score of how strong a domain's link profile is, rounded to the nearest 5. 1,580 of the 1,964 sites have one. It is useful for comparing sites, not a Google metric, so relevance to your niche still matters more.
How do I get backlinks for a new website?
1. Get the basics right first: Before submitting anywhere, have a one-line description, a 150-word description, a square logo and two or three screenshots ready. Every form asks for some mix of these. 2. Claim profiles and free listings: Start with the free, quick rows: profile creation sites and free directories. They are one form each and build the entity signals search engines use to understand who you are. 3. Go after a few strong links: Then pick a handful of high DA and dofollow sites that fit your niche, and write proper guest posts or launch posts for them. Ten relevant links beat a hundred random ones. 4. Track and keep it clean: Note where you submitted and when. Recheck after a month, update stale descriptions, and never pay for bulk link packages: they put the whole site at risk.
Will submitting everywhere hurt my site?
Submitting to spam directories can. That is why this list is curated rather than scraped, and why entries carry a status showing whether they have been verified as live. Skip anything that promises hundreds of links for a fee, and prefer places where a real person reviews submissions.