Free
$0Free plan available.
RewriteBar is a macOS menu bar AI assistant that enhances writing in any application. It improves sentences effortlessly in Slack, emails, or code editors, and works well with tools like Grammarly for better writing. It can quickly correct grammar mistakes, change writing styles, or translate text. Users can design their own rewrite actions to match their needs, create templates for emails, craft engaging social media posts, or develop their personal writing style. It supports multiple AI providers, allowing users to choose from 350+ models.
Select text in any macOS application, trigger an action using the command menu or a custom keyboard shortcut, and your writing will be transformed instantly. The corrected text is automatically pasted back, replacing your original selection.
RewriteBar captures your selected text via the macOS clipboard and sends it to a language model for processing. The corrected version is then automatically pasted back, replacing the original text.
Yes. RewriteBar does not store or track your data. Processing depends on your chosen provider: With the default RewriteBar service, your text is sent to a server to be processed by a language model and returned; your text and API keys are not stored. With third-party providers like OpenAI, Mistral, or Ollama, your request is sent directly from your device to their API, meaning RewriteBar does not see or process your text. The app is a lightweight, 6 MB native macOS tool focused on privacy.
Yes, RewriteBar functions with almost any application or website that supports text input, including Google Chrome, Google Docs, Microsoft Word, Slack, WhatsApp, email clients, Microsoft Teams, Notion, and Visual Studio Code.
Yes, you can try RewriteBar for free with up to 100 corrections. Afterward, you may choose to upgrade to a subscription or a one-time license.
Yes, you can request a refund within 7 days of your purchase by contacting us via email.
RewriteBar has been tested with English and German, but it should support any language compatible with ChatGPT. Please contact us if you experience issues with a specific language.
Upon purchase, you will receive an email containing a download link for the app and a license key for activation. This license key also provides access to unlimited app updates.
There are no additional costs with the subscription plan. If you use the one-time license, you must provide your own OpenAI API key, which may incur usage-based charges. Most users find that approximately $1 per month is sufficient to get started.
You can cancel your subscription through the Subscription Portal. If you have questions, please contact us via email.
No, a ChatGPT Plus subscription is not required. The OpenAI API uses a pay-as-you-go model, or you can use the RewriteBar AI Cloud included with your subscription plan.
The app requires macOS accessibility permissions to retrieve your selected text and replace it with the corrected version, allowing it to work across any application. No data is stored.
You can create an account on OpenAI to generate an API key. Setup instructions are available in our help center.
The one-time license requires you to provide your own provider API key (such as OpenAI) and may incur usage-based costs. The subscription plan includes access to the RewriteBar AI Cloud, which is ideal for users who prefer not to manage their own API keys.
No, there is no Windows version. RewriteBar is built with native macOS tools and is not compatible with Windows. If you are on Windows, you may consider the alternative: Grammarsen.
You can reach out via email at any time, and I will be happy to help.
Free plan available.
Use these comparison pages to understand the trade-offs between the models most relevant to RewriteBar.
Compare GPT 5.4 and GPT 5.4 Pro across pricing, context window, capabilities, benchmarks, and API access to choose the better fit for long-context workloads versus long-context workloads.
Compare GPT 5.5 and GPT 5.4 across pricing, context window, capabilities, benchmarks, and API access to choose the better fit for long-context workloads versus long-context workloads.
Compare GPT 5.5 and Claude 4.6 Opus across pricing, context window, capabilities, benchmarks, and API access to choose the better fit for long-context workloads versus long-context workloads.
Compare GPT 5.5 and Claude 4.6 Sonnet across pricing, context window, capabilities, benchmarks, and API access to choose the better fit for long-context workloads versus long-context workloads.
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