Grammar Checker
Check your text for grammar and spelling issues.
⚠️ Unlike most tools on this site, this one sends your text to the free LanguageTool API for checking - don't paste anything sensitive. It's also rate-limited, so heavy use may be temporarily blocked.
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How Grammar Checker works
How does the grammar checker actually find errors?
Unlike the other writing tools on this site, this one sends your text as an HTTP POST request to the free public LanguageTool API (api.languagetool.org/v2/check) with the language set to en-US. LanguageTool's servers run the text through their grammar, spelling, and style rules and return a list of matches, each with an explanation, the surrounding context, and up to five suggested replacements.
When would I reach for this over a basic spell-checker?
It catches grammar and style issues that a browser's built-in spell-check misses, such as subject-verb agreement, commonly confused words, and punctuation problems, before you send an email, publish a post, or submit an assignment. Because it calls a real grammar engine rather than a handful of regex rules, it picks up more nuanced mistakes than the other, purely local tools on this site.
Is my text private when I use this tool?
No, and the page says so directly: your text is transmitted to LanguageTool's servers to be analyzed, so avoid pasting anything sensitive or confidential. The free API is also rate-limited, so checking large volumes of text in quick succession may get temporarily blocked until the limit resets.