Writing & language

Spelling Checker: what you'd pay elsewhere

AltFTool's Spelling Checker flags spelling and grammar issues in English text and lets you apply the suggested fix, free and with no account. Grammarly Pro is US$12 per member/month averaged on the annual plan (US$144/year), or US$30 billed monthly. Grammarly's own Free plan already does spelling and grammar corrections, so for basic checking the honest comparison is between two free options; what Pro adds is rewriting, tone and plagiarism detection.

Prices checked 3 days ago
Open the free Spelling CheckerCompare prices

At a glance

Free Spelling Checker here
Free · no account
Grammarly Pro
US$12 per member/month
USD list price
Grammarly Pro free tier
Free plan with spelling and grammar corrections and 100 AI prompts a month.
Biggest trade-off
Your text is sent to the public LanguageTool API (api.languagetool.org) to be checked. It is not processed on your device, so do not paste anything confidential.
Open the free tool

Checking English text for spelling and grammar mistakes: what the paid tools charge

Each figure is read from the vendor's own page on the date shown. Software pricing drifts — if a number here disagrees with the vendor's page, trust theirs.

Grammarly Pro

USD list price

Checking spelling and grammar as you write, plus full-sentence rewrites, tone adjustment and plagiarism and AI-text detection.

Entry price

US$12 per member/month

average monthly cost on the annual plan

US$144 per member/year; US$30 per member/month billed monthly, or US$60 every three months

Free tier

Free plan with spelling and grammar corrections and 100 AI prompts a month.

Grammarly states USD is the default currency; regional prices in EUR, GBP and INR are shown at checkout.

Checked 3 days ago

Read from grammarly.com/plans (opens in a new tab), support.grammarly.com/hc/en-us/articles/115000090011-How-much-does-Grammarly-Pro-cost (opens in a new tab)

What each free tier actually allows

Whether you need to pay at all depends on where the free plan's ceiling sits. Here it is in each vendor's own terms.

Grammarly Pro

USD list price
  • Grammarly Free is US$0/month and includes spelling and grammar corrections, tone detection and 100 AI prompts per month. Full-sentence rewrites, tone adjustment, fluency suggestions, plagiarism and AI-text detection are Pro features.

What the free Spelling Checker does not do

A comparison that cannot say what its own tool gives up is an advert.

  • Your text is sent to the public LanguageTool API (api.languagetool.org) to be checked. It is not processed on your device, so do not paste anything confidential.
  • US English only. There is no language or dialect selector, and the public API applies its own request limits, which show up as a check that returns nothing.
  • No full-sentence rewrites, tone detection, plagiarism or AI-text detection, and no checking while you type inside Gmail, Docs or Word. That is what Grammarly Pro sells.
  • Nothing is saved: no personal dictionary, no style guide and no history.

What the free Spelling Checker does

  • Checks pasted text and lists each issue with suggested replacements
  • Apply one suggestion, or apply the first suggestion for every issue in one click
  • No account, no extension to install, no word counter
Open Spelling Checker — the real tool, not a demo

Questions people actually ask

Is my text kept private?

Not in the way a local tool would be. The check runs on LanguageTool's public API, so the text leaves your browser. For anything sensitive, use a checker that runs offline or one covered by an agreement with your employer.

Do I need Grammarly Pro just to fix spelling and grammar?

No. Grammarly's Free plan includes spelling and grammar corrections and 100 AI prompts a month. Pro is for full-sentence rewrites, tone adjustment and plagiarism detection.

Cite this page

APA, MLA, BibTeX

Quote anything on this page with a credit. The date below is the date this page's data was read, not the date you are reading it — cite it alongside any figure you take from here, because these numbers move.

Canonical URL
https://www.altftool.com/deals/spelling-checker
Author and publisher
AltFTool — no individual author is credited on this page.
Prices checked
Price read from

APA

AltFTool. (2026, November 1). Spelling Checker: what you'd pay elsewhere. https://www.altftool.com/deals/spelling-checker

MLA

"Spelling Checker: what you'd pay elsewhere." AltFTool, 1 Nov. 2026, www.altftool.com/deals/spelling-checker.

BibTeX

@misc{altftool-deals-spelling-checker,
  author       = {{AltFTool}},
  title        = {{Spelling Checker: what you'd pay elsewhere}},
  year         = {2026},
  month        = {nov},
  howpublished = {\url{https://www.altftool.com/deals/spelling-checker}},
  note         = {Prices checked 2026-11-01. Source: Grammarly Pro: \url{https://www.grammarly.com/plans}.}
}

Each price is transcribed from the vendor's own page on the date shown and is never converted between currencies, so quote that date alongside any figure you take from here. The vendor links are plain links — no affiliate tracking, no referral IDs, no paid placement.

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