AI Runs on your device
Check grammar with AI, privately
Paste your text and an AI model on your own device corrects grammar, spelling and punctuation, then shows exactly what it changed.
Grammar checker
Text never leaves your device · Free, no sign-up · No length limit
How to check grammar with AI
- Type, paste or open your text.
- Download an AI model once, or use the one you already have.
- Select Fix grammar, then switch to Changes to see every correction.
An AI proofreader that stays on your device
Most grammar checkers send everything you write to their servers. This one runs an open AI language model inside your browser with WebGPU, so emails, essays and contracts are checked without leaving your device.
See every change
Changes shows the corrected text with removed words struck through and new words highlighted, so you can check each correction before you copy the result.
Questions about Grammar checker
Is my text uploaded?
No. The AI model runs in your browser tab on your own device, using WebGPU. Only the model itself is downloaded, once, from Hugging Face; the text you work on never leaves the tab.
How big is the download, and which model should I choose?
Between about 0.9 and 3.4 GB, once; your browser keeps it for next time, and every AI tool uses the same model. Gemma 2 2B is a good balance. Llama 3.2 1B is the quickest on older devices, and Qwen 3 4B gives the best results on a computer with a recent graphics chip.
Which languages can it check?
English works best. The larger models also correct Spanish, French, German, Portuguese, Italian and other major languages.
Which browsers work?
Browsers with WebGPU: current Chrome and Edge on Windows, macOS and ChromeOS, Safari 26 or later, and Chrome on recent Android phones. It runs faster on computers with more graphics memory.