Kerlig AI is a native macOS application that brings AI-powered writing assistance directly into any app on the desktop. Users can select text in any application and invoke Kerlig to rewrite, summarize, translate, fix grammar, change tone, or generate replies using a global keyboard shortcut. The tool supports multiple AI providers including OpenAI, Anthropic Claude, Google Gemini, and others, allowing users to bring their own API keys. Kerlig also supports custom prompts, letting teams and individuals create reusable writing workflows tailored to their specific needs. It is designed for professionals who write frequently across different applications — including email clients, browsers, note-taking apps, and communication tools — and want to avoid switching to a separate AI chat interface. Additional capabilities include a clipboard history feature, AI-powered web search, and the ability to work with PDFs and images. Kerlig is a one-time purchase with optional add-ons, targeting individual users and small teams on macOS.
Target audience and deployment
- Solo / Freelancer
- Startup
- SMB
- On-premise
Pricing
License
Key features
Use cases
- Rewrite and improve text in any macOS app
- Compose and reply to emails faster
- Translate text across multiple languages
- Summarize long documents or web content
- Create and reuse custom writing prompts
- Fix grammar and spelling across applications
Best for
- Freelancers who need to write and edit content quickly across multiple macOS applications
- Professionals who need to draft, rewrite, or translate emails and documents without switching tools
- Small teams who need to standardize writing workflows using custom AI prompts
- Content creators who need AI writing assistance natively integrated into their macOS desktop
Integrations
AI models included
OpenAI, Anthropic Claude, Google Gemini, Groq, Ollama