Kerlig
A macOS writing assistant that opens over any app with a hotkey to proofread, rewrite, reply and chat with documents, using your own AI provider keys or local models.
About Kerlig
Switching to a browser chatbot and pasting text back breaks the flow of writing emails, Slack replies and tickets.
Who it’s for
- Mac users who write a lot of email and chat messages at work
- People who want a one-time purchase instead of a subscription
When to consider it
Consider Kerlig when you want AI proofreading and rewriting in any Mac app through a shortcut, with your own OpenAI, Anthropic, Google or OpenRouter keys, or local models through Ollama, LM Studio or Apple Foundation Models.
Tradeoffs & limitations
- Mac only (Apple Silicon and Intel, macOS 12 or later).
- One-time licence: $49 for one Mac, $79 for two, $297 for ten; cloud models are billed separately by your own API provider.
SOTA overview · Documentation-based assessment · Sources & review method
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Sources & review method
Documentation-based assessment · Oct 31, 2026 · Prepared with AI assistance; not a hands-on benchmark.
Checked by SOTA · AI-assisted documentation review. Selection advice is our assessment; verify current requirements for your deployment.
Import history & original evidence
Kerlig official website
A macOS writing assistant that opens over any app with a hotkey to proofread, rewrite, reply and chat with documents, using your own AI provider keys or local models.
Based on official pages and announcements checked on 2026-10-31. No hands-on test, performance benchmark or popularity ranking is claimed.