See a quick proofreading summary
See how natural the writing feels along with a tone check, so you can tell at a glance whether it needs revision.
Translation
Proofreading Mode
Free AI proofreading for your text
Proofread without signing in
Proofread and polish your text with Nani. Check grammar, typos, spelling, wording, and tone, then refine the style with AI.
Your input and results stay on your device and are never used for anything else. Learn more
Review fixes and proofreading suggestions
Changes are highlighted so edits are easy to follow, and longer texts may include underlined notes that explain what to fix and why.
Effortlessly fine-tune your writing
Tap options like “Casual” or “Neutral” to shift the tone, and use Add Content when you want the AI to add an extra sentence to the original text.
Desktop app proofreads any text instantly
Quickly catch typos and overlooked errors before sending emails or documents.
Proofread in any app
With Desktop app, you can quickly proofread text in any app using a shortcut.
Saved securely on your device
Your proofreading results stay on your device, so you can revisit them anytime.
Proofreading FAQ
Translation mode turns your text into another language. Proofread mode keeps it in the same language and checks for typos, grammar issues, awkward phrasing, and tone.
In proofread mode, you can review suggested fixes, adjust the tone with AI, or rewrite only the selected part. It works for both foreign-language writing and quick checks in your native language.
Translation data are stored on your device and not on our servers. Our staff never have access to the text you input or the translated content.
We never repurpose or reuse your submitted data.
That makes Nani a reliable choice for business translation tasks, such as handling support inquiries and customer communication.
For translation and abuse detection, inputs are sent to Google, OpenAI, or xAI servers. These platforms may temporarily cache the data but automatically delete it shortly thereafter.
No. This applies to all plans, including the free plan. We only use services that explicitly state they will not use your data for model training. We also do not use your input or translation results to improve our service.
Yes. The free plan includes both translation and proofreading, with limits on usage count and text length. Choose a paid plan for higher limits or more advanced AI models.
View pricing plans ->Yes, the Team Plan is available. With the Team Plan, you can manage members and billing through a dedicated dashboard, and share usage across the entire team.