Free AI Grammar Checker
Commercial use OK
380+ models
No watermark
No sign-up needed
Model:
+ GPT-5, Claude, Gemini
Corrected text
Corrections explained
Advanced options
Result
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Check grammar and spelling for free with AI. Better than Grammarly, no sign up needed.
How to Use Free AI Grammar Checker
1
Enter your input
Type text, upload a file, or describe what you want. No account needed.
2
Click generate
Our AI processes your request in seconds using the best open-source models.
3
Download & share
Download, copy, or share your result. Free for personal and commercial use.
Use this tool via API
Automate this tool from your own code. OpenAI-compatible REST endpoint, Bearer-token auth, no extra SDK required. Token costs match the web interface.
curl -X POST https://api.free.ai/v1/chat/ \
-H "Authorization: Bearer sk-free-..." \
-H "Content-Type: application/json" \
-d '{"model": "qwen7b", "messages": [{"role": "user", "content": "Summarize this: ..."}]}'Related Free AI Tools
Free AI Grammar Checker — FAQ
Yes! Free AI Grammar Checker on Free.ai is completely free. No credit card, no hidden fees, no trial period.
No! You can use Free AI Grammar Checker immediately without any registration. Creating a free account gives you 3x more daily usage.
Free AI Grammar Checker is powered by state-of-the-art open-source AI models running on our GPU servers. Enter your input and get results in seconds.
Absolutely. Your data is processed securely and never stored permanently. We do not sell or share any user data.
Free users get generous daily limits that reset every 24 hours. Sign up for 3x more, or upgrade for unlimited access starting at $5/month.
Yes! Free AI Grammar Checker works on all devices. Our responsive design adapts perfectly to phones, tablets, and desktops.
Yes! All output from Free AI Grammar Checker is yours to use for personal and commercial purposes. Our AI models are commercially licensed.
Free AI Grammar Checker delivers comparable quality to paid services using the latest open-source AI. We believe AI should be free for everyone.
Free AI Grammar Checker uses best-in-class open-source models like Qwen, FLUX, Kokoro, Whisper, and more. We update to the latest models regularly.
We are working on a developer API. Contact us for early access to the Free AI Grammar Checker API.
Yes! You can download, copy, or share results. Signed-in users can also access their full generation history.
Free.ai runs AI locally on our own servers using open-source models. This means true privacy, no rate limiting tricks, and no bait-and-switch pricing.
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