Grammarly costs $12/mo — a local LLM does it for free (Chrome + Ollama)

I write a lot in the browser — email, GitHub comments, contact forms — and I wanted proofreading without uploading every keystroke to a company's cloud. My workplace bans Grammarly for exactly that reason.

So I built inline-scribe: a Chrome extension that proofreads your text with an AI that runs on your own machine (Ollama). Nothing leaves your computer. And the fixes show up like Word's Track Changes — accept or reject each one individually with ✓ / ✕.

This post is about the two design decisions I found most interesting while building it. Both generalize to anyone wiring a local LLM into a product.

The LLM never produces the diff.

Silencing Ollama's 403 with declarativeNetRequest — zero-config, no OLLAMA_ORIGINS.