Real-time grammar, spelling & punctuation checking — powered by AI, works on every website you visit.
One extension, zero setup, works everywhere from Gmail to Notion to Twitter.
Checks as you type with no perceptible delay. No waiting, no clicking — seamless real-time feedback.
Any text input on any website. Gmail, Notion, Twitter, LinkedIn, Google Docs — all covered.
Catches errors, misspellings, wrong homophones, missing commas — with clear explanations.
A clean floating panel shows all issues. Drag it anywhere on screen. Apply fixes with one click.
LanguageTool integration is 100% free, no API key needed. Upgrade to any AI provider anytime.
NAVW never stores your text. API keys stay in your browser only. No tracking ever.
Switch between providers anytime in Settings. Start free, upgrade when ready.
How NAVW handles your data — clearly and honestly. Effective June 2025 · v2.0
NAVW is a browser extension that checks grammar, spelling, and punctuation in real time. This Privacy Policy explains what data is used, how it is processed, and your rights as a user.
NAVW collects no personal information. The only data processed is the text you type into input fields on websites:
When you type, NAVW sends that text to the grammar provider you selected in Settings:
Your API keys are stored only in your browser's local storage and are never transmitted elsewhere.
NAVW does not share, sell, rent, or trade any user data with any third party. The only data transmission is text sent directly to the grammar API you have chosen.
NAVW does not retain any data. Text checked is sent to the API in real time and is not logged, cached, or stored by the extension. Settings remain in browser local storage until you uninstall.
NAVW is not directed at children under 13. We do not knowingly collect any information from children. If you have concerns, please .
We may update this Privacy Policy from time to time. The effective date at the top will be updated. Continued use of NAVW after changes constitutes acceptance of the updated policy.
By installing and using NAVW, you agree to the following terms. Effective June 2025 · v2.0
These Terms govern your use of the NAVW Grammar Checker browser extension, created and maintained by Himaghna Medhi. By using the Extension, you agree to these Terms in full.
We grant you a limited, non-exclusive, non-transferable license to use the Extension for personal, non-commercial purposes. You may not:
NAVW integrates with third-party grammar and AI APIs. Your use of these services is governed by their respective terms and privacy policies. We are not responsible for the availability or accuracy of these third-party services.
You are solely responsible for obtaining and managing any API keys required for paid providers.
The Extension is provided "as is" and "as available" without any warranties, including accuracy of grammar suggestions or uninterrupted availability. Grammar suggestions are generated automatically and may not always be correct — always review before applying.
To the fullest extent permitted by law, Himaghna Medhi shall not be liable for any indirect, incidental, or consequential damages arising from your use of the Extension, including data loss or errors in grammar suggestions.
We reserve the right to modify or discontinue the Extension at any time without notice. We may also update these Terms at any time. Continued use after updates constitutes acceptance of the revised Terms.
If you have questions about these Terms, please or reach out on X @himaghnamedhi.
Have a question, bug report, or feature request? Reach out — we read everything.