PaletteBrain

PaletteBrain is a macOS application that integrates OpenAI's ChatGPT into your everyday workflow. Instead of switching between apps and browsers, you can invoke AI commands from within any application using a simple keyboard shortcut. Select the text you want to work with, trigger PaletteBrain, choose from pre-built or custom commands, and the results appear ready to paste back.

Highlights

• Works across all macOS apps and websites without tab switching
• Create unlimited custom AI commands with keyboard shortcuts
• Pre-built commands for grammar fixes, translation, summarization, and content rewriting
• Support for OpenAI API and Microsoft Azure OpenAI
• All data stays local — no cloud storage or privacy concerns
• Supports unlimited conversations and messages

The app operates on a one-time purchase model (starting at $29 for a personal license) with AI costs paid directly to OpenAI on a pay-per-use basis, typically under $1 monthly. It's ideal for writers, developers, researchers, and anyone who works with text regularly and wants to enhance productivity with AI without context switching.