RewriteBar: macOS AI Writing Assistant for Grammar, Translation & Productivity

How Does It Work?

RewriteBar captures the currently selected text using the macOS clipboard and sends it to a language model for rewriting. The corrected version is then automatically pasted back, replacing the original text.

Is RewriteBar Safe?

Yes. RewriteBar does not store or track any of your data. How your text is processed depends on the provider you choose: RewriteBar (default): Your selected text is sent to the RewriteBar server, which forwards the request to a language model and returns the corrected version. We do not store your text or API key on our server. Third-Party Providers (e.g. OpenAI, Mistral, Ollama): Your request is sent directly from your device to the provider’s API. RewriteBar never sees or processes your text. The app is built using native macOS tools and is just ~20 MB in size — lightweight and privacy-focus

Can RewriteBar Be Used in Any App and Webpage?

Yes, RewriteBar works with almost any application or website that supports text input. It runs quietly in the background so you can stay focused and keep your writing flow. Examples include: Google Chrome Google Docs Microsoft Word Slack WhatsApp Emails Microsoft Teams Notion Visual Studio Code

Is There a Free Trial?

Yes, you can try RewriteBar for free with up to 100 corrections. When you’re ready to continue, you can choose a subscription or a one-time license, whichever suits you best.

Can I Get a Refund?

Yes, you can request a refund within 14 days of purchase. Just reach out via email .

Which Languages Are Supported?

RewriteBar App Interface is translated into 12 languages. The translation action supports over 500 languages. However, language Support also depends on the selected model. Cloud models like GPT-5 are advanced and support most languages, while smaller local models can only support a limited number of languages. If you encounter issues with a specific language, feel free to contact us.

Do Any Additional Costs Apply?

RewriteBar (once purchased) and local models do not incur additional costs. Additional charges apply only when using cloud AI providers via the BYOK (bring your own API key) option. In that case, you pay your chosen provider directly.

How Do I Cancel My Subscription?

You can cancel your subscription through the Subscription Portal . If you have any questions, feel free to contact us via email .