Kerlig for Web

Meet Kerlig — a macOS writing companion

Kerlig is an in-context AI writing tool built specifically for macOS. It provides on-the-fly writing help — from quick typo fixes to more advanced grammar suggestions — while blending into the apps you already use. The app is designed to preserve your personal tone so your responses feel like they came from you.

Capabilities and highlights

• Fits directly into any macOS application so you can edit text where you work.
• Provides instant assistance such as grammar corrections, typo prevention, and style suggestions.
• Handles very large files, with support for documents that can reach hundreds of pages (up to around 350 pages).
• Produces concise summaries of web pages and longer articles, and lets you interact conversationally with PDFs and other documents.
• Works alongside popular SEO and marketing tools and can complement services like SEMrush Free for broader workflows.
• Lets you translate content into other languages and run interactive, chat-like exchanges about your material.

Compatible AI engines

Kerlig can connect with multiple underlying AI providers, expanding its flexibility and feature set:

• Google Gemini
• Anthropic’s Claude
• OpenAI (and other supported models)

Common ways people use it

• Replying to messages in apps such as Slack and Mail while keeping a consistent voice.
• Summarizing lengthy web content or articles into short, actionable points.
• Conversing with PDFs and long documents to find information quickly.
• Translating text between languages and polishing translations for clarity.

Advantages and limitations

Advantages

• Real-time help that adapts to your writing style.
• Customizable features that suit different writing tasks.
• Trusted by users worldwide for everyday drafting and editing.

Limitations

• Available only on macOS.
• Certain features require API keys from third-party AI providers, which may involve separate setup or subscription steps.