Liner

AI search and research assistant that answers with sources and helps you highlight the web.

What is Liner?

Liner is an AI research tool that gives answers backed by cited sources, with a focus on academic and reliable content. It started as a web highlighter, so you can still save and organise highlights from pages and PDFs. It runs on the web, as a browser extension and on mobile.

Best for: Students who want sourced answers and a way to keep reading notes.

What you can do with Liner

Find sources for a school essay
Highlight key lines on articles you read
Get a quick summary of a long web page

Key features

Answers with linked citations
Highlight and save web pages and PDFs
Research modes for academic sources
Browser extension for reading online

Liner pros and cons

Pros

Sources are shown clearly
Combines search and note-keeping

Cons

Advanced research modes need a paid plan

Liner pricing

Free + Paid

Liner has a free plan, with paid plans that add more usage or features. Plans change often, so check the official site for current prices.

How to get started

Open getliner.com and create a free account.
Try one real task first: find sources for a school essay.
Compare the result with Scite or SciSpace, then keep the one that fits how you work.

Compare Liner

Side-by-side comparisons of features, pricing, pros and cons.

Liner alternatives

Other tools that do a similar job, ranked by our editors.

Scite
Free trial
Shows how research papers are cited, including whether later work supports or disputes them.
AI Search & ResearchVisit
SciSpace
Free + Paid
AI research assistant that finds papers, explains them and helps with literature reviews.
AI Search & ResearchVisit
Connected Papers
Free + Paid
Builds a visual map of papers related to one you choose, so you can explore a field fast.
AI Search & ResearchVisit
ResearchRabbit
Free + Paid
Literature discovery tool that suggests related papers and authors from your collections.
AI Search & ResearchVisit
Litmaps
Free + Paid
Citation maps that help you discover, organise and track research papers over time.
AI Search & ResearchVisit
Perplexity
Free + PaidEditor's pick
An answer engine that searches the web and cites its sources.
AI Search & ResearchVisit

Top AI research tools

How Liner compares with the best in AI Search & Research.

1. Perplexity
Free + Paid
An answer engine that searches the web and cites its sources.
2. NotebookLM
Free + Paid
Upload your sources and ask questions grounded only in them.
3. Consensus
Free + Paid
Search what scientific research says about a question.
4. Elicit
Free + Paid
An AI research assistant for finding and analysing papers.
5. You.com
Free + Paid
An AI search and research assistant with several models to choose from.

See all 16 AI research tools

Liner FAQ

What is Liner?

Is Liner free?

Liner has a free plan, with paid plans that add more usage or features. Check the official site for current limits and prices.

What can you do with Liner?

With Liner you can find sources for a school essay; highlight key lines on articles you read; get a quick summary of a long web page.

Who is Liner best for?

Students who want sourced answers and a way to keep reading notes.

Does Liner have an app?

Yes. Besides the web version, Liner has apps for iPhone & iPad and Android.

Who makes Liner?

Liner is made by Liner.

What are the best alternatives to Liner?

Popular alternatives include Scite, SciSpace, Connected Papers and ResearchRabbit. See the full ranking on our AI Search & Research page.

AltFTool is not affiliated with Liner. This summary was written by our editors from the tool's public information. Browse all 451 AI tools