FREEAI Grammar Checker · no signup to start

Free AI grammar checker

Catch spelling slips, double spaces, repeated words, a/an mix-ups and capitalization errors in seconds. Every fix is highlighted so you can see exactly what changed.

Instant fixesGrammar + styleNo signupFree to start
AI Grammar Checker
Inline fixes · issue list
0 / 500 words
CORRECTED
IDLE

Nothing checked yet

Paste text and hit Check grammar, or load the example.

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WHY TEXTSIGHT

Clean writing, instantly

Catches the common slips

Spelling, double spaces, repeated words, missing capitals, a/an errors and spacing around punctuation.

Every fix explained

Corrections are highlighted in the output and listed with a before → after, so you learn as you edit.

Private & instant

Your text is processed securely for the check, then deleted — we don't store it or train on it.

Want advanced rewrites and tone insights?

The AI Humanizer goes beyond grammar — it improves flow and shows your detection score.

Try the Humanizer
FAQ

Grammar checker questions

What does the checker catch?
Common, high-confidence issues: misspellings, repeated words ("the the"), double spaces, missing spaces after punctuation, lowercase "i", a/an before vowels, and missing capital letters at the start of sentences. Advanced style rewrites and tone insights are part of Pro.
Does it rewrite my whole text?
No — it makes targeted, safe corrections and highlights each one, leaving your wording and voice intact. You can copy the corrected version or review changes one by one.
How much can I check for free?
Anonymous users can check up to 500 words, 5 times a day. A free account lifts that to unlimited checks up to 2,000 words; Pro adds advanced rewrites and more languages.
Is it as good as Grammarly?
For the common mechanical errors most writing needs, yes — instantly and privately. For deep stylistic rewriting across long documents, that's where Pro and the AI Humanizer come in.
Is my text stored?
Your text is processed securely for the check and deleted afterwards — we don't train on it or share it.
Does it work on mobile?
Yes, the editor and results stack cleanly on phones.