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Mathias MichelJune 2Use Case
Improve Developer Writing in Seconds
RewriteBar is a macOS menu bar app that rewrites selected text. Use it in VS Code, Cursor, terminal, or Slack to clean up commit messages, format SQL, explain code, and summarize long logs.
25 MB • Mac Intel & Apple Silicon • macOS 13.0+ (Ventura)
🌐 500+ Languages
🤖 Local Models
🔍 PopClip Integration
✅ Fix Grammar
🎯 Custom Workflows
Sound Familiar?
Common writing bottlenecks this solves
Commits and PR descriptions are often rushed
One-line commits and unclear PR text slow reviews. You need clearer writing without opening another tool.
Raw SQL and logs are hard to scan
Dense queries and long stack traces hide key issues. You want quick formatting and summaries for faster debugging.
Docs and comments need polish
Your implementation is done, but the explanation is rough. You need cleaner technical writing before sharing.
How It Works
A simple flow to get better results
1
Select text in your app
Highlight a commit message, PR section, SQL query, log block, or doc snippet in your current app.
2
Run a RewriteBar command
Trigger RewriteBar and choose a command like Format SQL, Explain This, Summarize, or Improve Writing.
3
Paste and keep going
Paste the output back into your IDE, PR, doc, or chat and continue working.
Before & After
Real rewrites you can apply in seconds
Commit message
Before
fix bug in auth
After
Fix null reference in auth flow when session expires. Add a guard in validateSession() and return HTTP 401 with a clear error message.
SQL
Before
SELECT * FROM users WHERE id=1 AND active=true ORDER BY created_at DESC
After
SELECT * FROM users WHERE id = 1 AND active = true ORDER BY created_at DESC
Explain code
Before
const re = /^[a-z]+@[a-z]+\.[a-z]+$/i
After
This regex validates a simple email format: letters before and after "@", then a domain suffix. It is case-insensitive because of the i flag.
Related Commands
Try these in RewriteBar or the Prompt Library
Development
SQL Formatter
Format unstructured SQL into clean, readable queries with consistent indentation and line breaks.
sqlformat+3 more
Rewrite
Explain This
Explain the provided text in a simple and clear way, keeping language and meaning the same.
explainclarify+2 more
Rewrite
Summarize
Summarize the provided text in 3-4 sentences, keeping language and meaning the same.
summarizesummary+2 more
Writing
Fix Grammar & Spelling
Analyze text for grammar, punctuation, spelling, and sentence structure. Provide corrections to make the text fluent and accurate, replying only with the corrected text in the same language.
grammarcorrection+2 more
Development
Extract Action Items
Extract clear, actionable tasks from long text like meeting transcripts, Slack conversations, or brainstorming sessions.
productivitymeetings+2 more
Development
Format JSON
Format compact JSON into a readable structure with consistent indentation and line breaks.
jsonformat+2 more
The Smartest AI.
With Total Privacy.
Choose from 500+ models across 37+ AI providers - including local options like Ollama and Apple Intelligence.
OpenAI
GPT-5, GPT-4.1, GPT-4o, ...
Ollama
gpt-oss, Llama 3, Phi-4, ...
OpenRouter
Includes 350+ Models
XAI
Grok 4, Grok 4 fast, Grok 3
LM Studio
Llama 3, gpt-oss, qwen, ...
Baseten
OpenAI-compatible endpoint
Fireworks AI
OpenAI-compatible endpoint
MiniMax
OpenAI-compatible endpoint
ZenMux
OpenAI-compatible gateway
OpenAI
GPT-5, GPT-4.1, GPT-4o, ...
Ollama
gpt-oss, Llama 3, Phi-4, ...
OpenRouter
Includes 350+ Models
XAI
Grok 4, Grok 4 fast, Grok 3
LM Studio
Llama 3, gpt-oss, qwen, ...
Baseten
OpenAI-compatible endpoint
Fireworks AI
OpenAI-compatible endpoint
MiniMax
OpenAI-compatible endpoint
ZenMux
OpenAI-compatible gateway
OpenAI
GPT-5, GPT-4.1, GPT-4o, ...
Ollama
gpt-oss, Llama 3, Phi-4, ...
OpenRouter
Includes 350+ Models
XAI
Grok 4, Grok 4 fast, Grok 3
LM Studio
Llama 3, gpt-oss, qwen, ...
Baseten
OpenAI-compatible endpoint
Fireworks AI
OpenAI-compatible endpoint
MiniMax
OpenAI-compatible endpoint
ZenMux
OpenAI-compatible gateway
OpenAI
GPT-5, GPT-4.1, GPT-4o, ...
Ollama
gpt-oss, Llama 3, Phi-4, ...
OpenRouter
Includes 350+ Models
XAI
Grok 4, Grok 4 fast, Grok 3
LM Studio
Llama 3, gpt-oss, qwen, ...
Baseten
OpenAI-compatible endpoint
Fireworks AI
OpenAI-compatible endpoint
MiniMax
OpenAI-compatible endpoint
ZenMux
OpenAI-compatible gateway
Anthropic
Claude 4, Claude 3.7, Claude 3.5
Groq
GPT-oss, Llama 3.2, ...
Perplexity
Sonar
TogetherAI
GPT-5.x, Grok, Llama, Mistral, ...
Apple Intelligence
Apple Foundation Model
Cloudflare AI Gateway
OpenAI-compatible gateway
Hugging Face
Inference Providers
Nebius Token Factory
OpenAI-compatible endpoint
Cerebras
OpenAI-compatible endpoint
Anthropic
Claude 4, Claude 3.7, Claude 3.5
Groq
GPT-oss, Llama 3.2, ...
Perplexity
Sonar
TogetherAI
GPT-5.x, Grok, Llama, Mistral, ...
Apple Intelligence
Apple Foundation Model
Cloudflare AI Gateway
OpenAI-compatible gateway
Hugging Face
Inference Providers
Nebius Token Factory
OpenAI-compatible endpoint
Cerebras
OpenAI-compatible endpoint
Anthropic
Claude 4, Claude 3.7, Claude 3.5
Groq
GPT-oss, Llama 3.2, ...
Perplexity
Sonar
TogetherAI
GPT-5.x, Grok, Llama, Mistral, ...
Apple Intelligence
Apple Foundation Model
Cloudflare AI Gateway
OpenAI-compatible gateway
Hugging Face
Inference Providers
Nebius Token Factory
OpenAI-compatible endpoint
Cerebras
OpenAI-compatible endpoint
Anthropic
Claude 4, Claude 3.7, Claude 3.5
Groq
GPT-oss, Llama 3.2, ...
Perplexity
Sonar
TogetherAI
GPT-5.x, Grok, Llama, Mistral, ...
Apple Intelligence
Apple Foundation Model
Cloudflare AI Gateway
OpenAI-compatible gateway
Hugging Face
Inference Providers
Nebius Token Factory
OpenAI-compatible endpoint
Cerebras
OpenAI-compatible endpoint
Gemini 2.5 Pro, 2.0 Flash, ...
DeepSeek
DeepSeek V3, R1, ...
Mistral
Pixtral Large, Mistral 7B, ...
Azure AI Foundry
GPT-5.x, GPT-5.4-nano, ...
302.AI
OpenAI-compatible endpoint
DeepInfra
Llama, Qwen, Mixtral, ...
Moonshot AI
Kimi
Vercel AI Gateway
OpenAI-compatible gateway
Gemini 2.5 Pro, 2.0 Flash, ...
DeepSeek
DeepSeek V3, R1, ...
Mistral
Pixtral Large, Mistral 7B, ...
Azure AI Foundry
GPT-5.x, GPT-5.4-nano, ...
302.AI
OpenAI-compatible endpoint
DeepInfra
Llama, Qwen, Mixtral, ...
Moonshot AI
Kimi
Vercel AI Gateway
OpenAI-compatible gateway
Gemini 2.5 Pro, 2.0 Flash, ...
DeepSeek
DeepSeek V3, R1, ...
Mistral
Pixtral Large, Mistral 7B, ...
Azure AI Foundry
GPT-5.x, GPT-5.4-nano, ...
302.AI
OpenAI-compatible endpoint
DeepInfra
Llama, Qwen, Mixtral, ...
Moonshot AI
Kimi
Vercel AI Gateway
OpenAI-compatible gateway
Gemini 2.5 Pro, 2.0 Flash, ...
DeepSeek
DeepSeek V3, R1, ...
Mistral
Pixtral Large, Mistral 7B, ...
Azure AI Foundry
GPT-5.x, GPT-5.4-nano, ...
302.AI
OpenAI-compatible endpoint
DeepInfra
Llama, Qwen, Mixtral, ...
Moonshot AI
Kimi
Vercel AI Gateway
OpenAI-compatible gateway
A Complete AI Writing
Toolkit for macOS.
Everything you need to write faster, clearer, and smarter — all in one place.
Comprehensive Writing Tools
Access a complete suite of writing tools including grammar correction, language simplification, tone adjustment, translation, text summarization, and ChatGPT prompt enhancement - all in one place.
Custom Actions
Create personalized rewrite actions tailored to your needs. Build templates for emails, social media posts, or any writing task you frequently do.
Distraction-Free Interface
Experience a clean, minimal interface that focuses on results. No cluttered windows - just select text and watch it transform instantly.
Lifetime License Available
Choose our one-time payment option to use RewriteBar forever with OpenAI integration. No recurring fees - just a single investment in your writing success.
Quick Access Shortcuts
Boost your productivity with customizable keyboard shortcuts for instant access to any feature.
Lightweight Performance
At just 25 MB, RewriteBar is incredibly lightweight yet powerful. Enjoy smooth performance without impacting your Mac's resources.
Cutting-Edge AI Models
Leverage the latest AI technology including GPT-4 and GPT-4-mini for superior writing assistance and more accurate suggestions.
Multiple AI Providers
Choose from leading AI providers including OpenAI, Anthropic, and DeepSeek. Select the service that best fits your needs.
Enhanced Grammar Checking
Complement your existing grammar tools. RewriteBar works alongside other checkers to provide comprehensive writing improvement.
Multilingual Support
Write confidently in multiple languages including German, English, and Spanish. Unlike Apple Intelligence (as of Oct. 2024), RewriteBar supports a wide range of languages for global communication.
Direct AI Integration
Enjoy secure, direct communication with AI providers. Your text and API keys remain private - nothing is stored on our servers.
Local AI Support
Choose complete privacy with local AI models through Ollama integration. Keep your writing assistance entirely on your machine.
Frequently Asked Questions
Your Questions, Answered
Quick answers for this use case before you try it.
- Yes. RewriteBar works anywhere on macOS where you can select text, including VS Code, Cursor, iTerm, Slack, and browser apps.
- Yes. Use SQL Formatter or Format JSON from built-in commands or the Prompt Library.
- Select the text and run Summarize or Extract Action Items. You get concise output you can paste into tickets or PR comments.
- Yes. RewriteBar supports OpenAI, Anthropic, Google, OpenRouter, and local models like Ollama. You bring your API key; your data stays under your control.
- No. Run RewriteBar from the menu bar, a shortcut, or PopClip, then paste the result back where you were working.
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Mathias MichelMarch 12Write Cleaner Technical Text Without Context Switching
Download RewriteBar free to improve commits, PR copy, SQL readability, and log summaries from any app.
Get 35,000 free credits • No credit card required • App size: 25 MB
