GrammarCheck.net
GrammarCheck.net is a free web checker and browser extension for English spelling, grammar, punctuation, and contextual usage.
What GrammarCheck.net is
GrammarCheck.net is a free web checker and browser extension for English spelling, grammar, punctuation, and contextual usage. Its Free Check lets users inspect corrections individually or apply them together without generative rewriting. Deep Check addresses misused words, advanced punctuation, run-on sentences, tense shifts, and style issues. The editor supports American, Australian, British, Canadian, New Zealand, and South African English. Additional tools provide readability and sentence-flow analysis, word and phrase frequency, writing goals and timers, a thesaurus, translation, and title capitalization. An experimental AI-style signal estimates whether writing resembles AI output, but the site says it is not proof of authorship. Free Check and the editor tools work without an account. Free Check costs nothing and accepts up to 10,000 characters; installing the free app enables longer-text review. Individual checks may have their own length limits or cooldowns. Text may be temporarily sent with technical metadata to third-party API providers, so sensitive material should be avoided.
Good
- Checks grammar, spelling, punctuation, and usage
- Supports six English variants
- Includes readability and sentence-flow tools
- Works without account sign-in
- Offers targeted corrections instead of rewriting
Watch out
- Free Check is limited to 10,000 characters
- Individual tools may impose cooldowns
- Text may be sent to third-party APIs
- AI-style result is not authorship proof
Who it suits
It suits students, English learners, teachers, professionals, editors, proofreaders, and other English writers. The language-variant choices help users working in different forms of English.
Verdict
GrammarCheck.net combines core proofreading with language-variant settings and broader writing-analysis tools at no listed cost. Its character limits and privacy guidance matter when reviewing long or confidential text.
Plans and prices
From GrammarCheck.net's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free Check | Free | Free Check limited to 10,000 characters · individual checks and tools may have text-length limits or cooldowns |
The facts
Each one read from GrammarCheck.net's own pages, with the date it was checked.
What it does
- Account requirement
- Free Check and the editor’s writing-analysis panels and supporting tools can be used without an account or sign-in.checked 9 Oct 2026
- AI detector
- The editor offers an experimental AI-style signal estimate and says the result is not proof of authorship.checked 9 Oct 2026
- Checks
- Free Check reviews grammar, spelling, punctuation, and contextual usage, with corrections users can review individually or apply together.checked 9 Oct 2026
- Compliance
- The privacy policy says data is handled within the limits of Swiss law and, where applicable, the GDPR.checked 9 Oct 2026
- Deep Check
- Deep Check is described as catching issues such as misused words, advanced punctuation, run-on sentences, tense shifts, and style issues.checked 9 Oct 2026
- English variants
- The editor supports American, Australian, British, Canadian, New Zealand, and South African English.checked 9 Oct 2026
- Intended users
- The editor describes its audience as English writers, including students, English learners, teachers, tutors, content creators, professionals, editors, and proofreaders.checked 9 Oct 2026
- No rewriting
- Free Check does not use generative AI to rewrite text and suggests targeted corrections instead.checked 9 Oct 2026
- Privacy
- The privacy policy says free-check text may be temporarily sent with technical metadata to third-party API providers and advises against submitting sensitive or confidential information.checked 9 Oct 2026
- Purpose
- The online checker reviews English spelling and grammar and offers proofreading suggestions.checked 9 Oct 2026
- Style suggestions
- Yeschecked 20 Sep 2026
- Support
- Users can contact the team through a form for questions, suggestions, or concerns.checked 9 Oct 2026
- Text limit
- Free Check is limited to 10,000 characters; the editor says installing the free app enables review of longer text.checked 9 Oct 2026
- Writing tools
- The editor includes readability insights, sentence-flow analysis, word and phrase frequency, writing goals and timers, a thesaurus, translation, and a title capitalizer.checked 9 Oct 2026
Where it runs
- Browser extension
- Yeschecked 20 Sep 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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