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Grammar Checker

Check your text for grammar errors, passive voice, weak words, and style issues — free, no sign-up.

Powered by LanguageTool — the same open-source engine used by millions. Checks grammar, spelling, punctuation, and style.

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How it works

Paste or type your text, click Check Grammar, and the tool instantly scans for grammar errors, repeated words, missing punctuation spacing, sentences starting in lowercase, passive voice, weak filler words, and common spelling mistakes. Each issue is flagged with a severity level and a clear explanation.

Why use this tool?

Poor grammar hurts your credibility in emails, essays, job applications, and blog posts. This free grammar checker — a Grammarly alternative with no sign-up — helps students, writers, and professionals improve writing quality and clarity before hitting send.

Frequently Asked Questions

Is this grammar checker free?

Yes, entirely free with no account needed. It's powered by LanguageTool, the same open-source engine used by millions.

Which languages does it support?

English (US, UK, AU) and auto-detect. More languages are supported by the underlying LanguageTool engine.

Is it better than Grammarly?

For free usage, it checks grammar, spelling, punctuation, and style without any word limits or paywalls — making it a strong free alternative.

Does it save my text?

No. Your text is sent only to the LanguageTool public API for checking and is not stored by PreppTools.

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