Grammar Checker
Paste your text to find spelling, grammar, punctuation and style issues, then fix them with one click. Your text stays in your browser.
Private by design. Your files are processed on your device and never uploaded.
How it works
- Type or paste your text (up to 20,000 characters).
- Review each issue and its explanation.
- Click a suggestion to apply it, then copy the corrected text.
Questions
Is my text sent to a server?
No. The checker runs in your browser using a WebAssembly engine, so nothing is uploaded or stored.
Which languages are supported?
English, with American, British, Canadian, Australian and Indian spelling options.
Is it as good as paid tools?
It catches many common spelling, agreement, punctuation and word-choice problems, but no checker is perfect. Read the suggestions before applying them.
Does it work offline?
After the first load your browser keeps the engine, so it can work without a connection.
Engine: Harper by Automattic (Apache-2.0), running locally in WebAssembly.