RewriteBar
RewriteBar is a macOS AI writing assistant that fixes grammar, translates to 500+ languages, and offers custom AI workflows in any app.
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What is RewriteBar?
RewriteBar is an AI-powered writing assistant designed exclusively for macOS that brings text enhancement directly into any application you use. Instead of switching to separate websites or chat interfaces, you select text in Gmail, Slack, Notion, VS Code, Figma, or any other app, trigger RewriteBar with a keyboard shortcut, and choose from AI actions like grammar correction, tone adjustment, translation to 500+ languages, text summarization, or prompt improvement. The tool automatically replaces your original text with the rewritten version after you review the side-by-side comparison.
Key features include support for 37+ AI providers (OpenAI, Anthropic, Google, DeepSeek, Ollama, LM Studio, Apple Intelligence), custom actionable workflows you create yourself (like extracting action items from meetings, converting feedback to user stories, or fixing JSON errors), PopClip integration for menu-triggered access, keyboard shortcuts for efficiency, and local AI model support for maximum privacy. The app is incredibly lightweight at just 25 MB, works in the background without disrupting your flow, and includes over 50 pre-built actions for common writing tasks.
RewriteBar is ideal for daily writers, founders, developers, product managers, marketers, students, non-native English speakers, and pastors/churches who write regularly and want AI assistance without breaking their workflow. It complements tools like Grammarly (for live small fixes) and ChatGPT (for idea generation) rather than replacing them, making it perfect for knowledge workers who spend hours writing in various macOS applications.
RewriteBar pricing
Pricing model: Freemium
RewriteBar offers a free trial with 35,000 one-time credits and no credit card required. The Standard plan is a $29 USD one-time payment for 1 active device with 35,000 credits, unlimited app updates, third-party providers, BYOK support, and local AI providers. The Pro plan is $59 USD one-time for 3 active devices, 3 million monthly credits, all Standard features plus a 1-year RewriteBar Gateway subscription. Optional add-ons include an Extra Device for $19 USD (one-time) and RewriteBar Gateway for $40 USD annually (58 AI models, 3 million monthly credits, premium models included). The monthly subscription is $5/mo and annual is $40/year for Gateway access. A 50% refund is available if you create and share a public demo video.
RewriteBar pros
- Works in any macOS application with text input
- One-time payment option of $29 with no subscription required
- Bring Your Own Key (BYOK) support for 37+ AI providers
- Supports local AI models via Ollama and LM Studio for privacy
- Apple Intelligence integration for on-device AI processing
- Translation to 500+ languages including code snippets
- 50+ pre-built custom actions for specific workflows
- Side-by-side comparison view to review changes
- PopClip integration for menu-triggered access
- Customizable keyboard shortcuts for all features
- Extremely lightweight at only 25 MB file size
- Free trial with 35,000 credits and no credit card required
- 14-day refund policy upon purchase
- Direct API communication keeps data private
- Works alongside Grammarly and ChatGPT without conflict
- Supports GPT-5, GPT-4.1, Claude 4, Gemini 2.5 Pro, and Grok 4
- Creates custom workflows like extracting tickets from feedback
- Interface translated into 12 languages
- No data storage on RewriteBar servers
- OpenRouter support with 350+ additional models
RewriteBar cons
- macOS only - no Windows or mobile version planned
- $5/month cloud subscription cost if you don't have your own API key
- Default model is GPT-4o mini unless you change it
- No review dialog before text replacement (like Fixkey)
- Requires macOS Accessibility permissions to function
- No dedicated prompt dialog shortcut - only specific preset shortcuts
- Local models support fewer languages than cloud models
- API setup required for BYOK option
- Extra device costs $19 as a one-time add-on
- RewriteBar Gateway annual subscription is $40
Frequently asked questions about RewriteBar
How does RewriteBar work technically?
RewriteBar captures your currently selected text using the macOS clipboard, sends it to a language model for rewriting, and automatically pastes the corrected version back to replace the original text. With third-party providers like OpenAI or Ollama, the request goes directly from your device to the provider's API. With the default RewriteBar service, text goes to their server which forwards it to a language model and returns the result. No text or API keys are stored on their servers.
Is my data private when using RewriteBar?
Yes, RewriteBar does not store or track any of your data. With third-party providers (OpenAI, Mistral, Ollama), your request goes directly from your device to the provider's API and RewriteBar never sees or processes your text. With the default RewriteBar service, text is forwarded to a language model and returned without storage. The app is native macOS and only ~20 MB, built with privacy focus.
What applications work with RewriteBar?
RewriteBar works with almost any application or website supporting text input, including Google Chrome, Google Docs, Microsoft Word, Slack, WhatsApp, emails, Microsoft Teams, Notion, Visual Studio Code, Figma, Xcode, Discord, Teams, Word, Facebook, Excel, and Brave. It runs quietly in the background so you stay focused without breaking your writing flow.
Can I try RewriteBar before buying?
Yes, you can try RewriteBar for free with up to 100 corrections (35,000 credits one-time). No credit card is required. When you're ready to continue, you can choose either a subscription or one-time license depending on what suits you best.
What is the refund policy?
You can request a refund within 14 days of purchase by reaching out via email. Additionally, there's a special program where you can get 50% back (up to 100% of your purchase refunded) by creating a short public demo video of RewriteBar and sharing it.
How many languages does RewriteBar support?
The RewriteBar app interface is translated into 12 languages. The translation action supports over 500 languages. However, language support depends on your selected model - cloud models like GPT-5 are advanced and support most languages, while smaller local models support only limited languages. Contact them if you encounter issues with a specific language.
Do I need to pay for AI usage separately?
RewriteBar (once purchased) and local models do not incur additional costs. Additional charges apply only when using cloud AI providers via BYOK (bring your own API key), where you pay your chosen provider directly. The Subscription plan includes RewriteBar Gateway access so you don't need to set up API accounts.
Does ChatGPT Plus or Claude Pro include API access for RewriteBar?
No. Subscriptions like ChatGPT Plus/Pro or Claude Pro apply only to their chat applications. API access is billed separately by each provider on a pay-as-you-go basis and is not included in those subscriptions. You can use your own API key (BYOK) and pay the provider directly, or use the RewriteBar AI Cloud included in the RewriteBar subscription.
Why does RewriteBar need macOS Accessibility permissions?
RewriteBar requests macOS Accessibility permissions so it can read your currently selected text and replace it with the improved result, enabling seamless operation in your favorite apps. This is essential for the core functionality of capturing selected text and pasting rewritten content back. They do not store your data.
What's the difference between One-Time License and Subscription?
One-Time License includes all RewriteBar features but requires you to set up your own API accounts with AI providers (OpenAI, Anthropic, etc.) and pay them directly for usage. Subscription includes all features from the one-time license plus RewriteBar Gateway access and priority support, so you don't need to set up API accounts - you can access the same AI models through their cloud service. You can still use your own API key (BYOK) or local models at any time with either option.