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Grammar Fixer

Text and HumanizerFree · Private

Fix grammar, spelling, and punctuation mistakes instantly in your browser. A local AI model runs on-device — your text is never sent to any server.

Your Text0 words
Corrected Text

Corrected text will appear here…

0 words inRuns entirely in your browser · cached after first use

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What does the Grammar Fixer correct?

It fixes spelling mistakes, missing apostrophes (dont →don't), punctuation spacing, capitalization, and common grammar slips — without changing your wording, tone, or meaning. It combines instant rule-based fixes with a small on-device AI model for sentence-level grammar corrections.

How to fix grammar

  1. Paste your text into the left pane.
  2. Click Fix Grammar. The first run downloads a small AI model — this is a one-time step.
  3. Review the corrected text in the right pane. Paragraphs stream in as they're processed.
  4. Copy the result or clear to start again.

Grammar Fixer vs. Text Humanizer

These two tools solve different problems. Grammar Fixer only corrects mistakes — it leaves your sentence structure and word choice alone. TheText Humanizer rewrites phrasing to sound less AI-generated, which changes wording on purpose. Use Grammar Fixer for proofreading; use Text Humanizer to change how the writing sounds.

Privacy — your text never leaves your browser

Most online grammar checkers send your text to a remote API. This tool is different: the AI model downloads once and runs entirely inside your browser. No text is ever transmitted. It works offline after the first model download.

Frequently Asked Questions

How does the grammar fixer work?
It combines instant rule-based fixes (missing apostrophes, common misspellings, punctuation spacing, capitalization) with a small on-device AI model that corrects grammar sentence by sentence — all inside your browser.
Is this different from the AI Text Humanizer?
Yes. Grammar Fixer only corrects mistakes — spelling, punctuation, verb agreement — without changing your wording or tone. The Text Humanizer rewrites phrasing to sound less AI-generated. Use Grammar Fixer for proofreading, and Text Humanizer to change how the writing sounds.
Is my text sent to any server?
No. The model downloads once to your browser cache and runs fully offline afterward. Your text never leaves your device.
Does it work on long documents?
Yes — paste up to a few thousand words. The tool processes one sentence at a time and streams corrections into the output pane as it works.
Why does the first run take longer?
Model files are downloaded and cached in your browser on first use. Subsequent runs load from cache in seconds.

Related Tools

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AI Text Humanizer

Humanize AI-generated text instantly in your browser. Includes on-device AI detection. Models run locally — your text is never sent to any server. Three rewrite modes: Light, Medium, Aggressive.