Kerlig

Kerlig stays out of the way until you need it. Hit a keyboard shortcut and it pops up right where you’re working — whether that’s Mail, Slack, Notion, or anything else. Fix grammar, improve a message, or draft a reply without opening a single browser tab. It fits right into how you already work on your Mac.

Not all tasks need the same model. Kerlig connects to 350+ models across OpenAI, Anthropic, Google, Groq, Perplexity, and more. Switch between them in one click. You can also run local models through Ollama, LM Studio, or Apple Foundation Models if you prefer to keep things on-device.

Kerlig comes with handy built-in actions like proofreading, summarizing, and translating. But the real power is making your own. Create custom prompts for things you do often — writing Jira tickets, converting code, generating social posts — and trigger them instantly from the shortcut menu. Your workflows, your rules.

Drop in a PDF, webpage, ebook, or image and start asking questions. Kerlig lets you analyze and summarize documents right inside the app, without copy-pasting chunks of text into a browser. It’s a fast way to pull insights from files you’re already working with.

Everyone writes differently. Kerlig lets you save tone presets — casual for Slack, polished for client emails, concise for tickets — so your AI-generated text sounds like you. Switch between tones in a click and keep your voice consistent across every message.

Kerlig doesn’t store or use your data for training. Your chat history stays encrypted on your Mac, and you’re always in control of which AI provider handles your requests. Write freely, knowing your messages and documents aren’t being collected or shared behind the scenes.