I built a Chrome extension that summarizes the paragraphs you scroll past — Gemma 4 via WebGPU, nothing is uploaded ✨
When you flick through a long article, Skim Recap notices the passage you skipped and shows a short recap next to your cursor. You stay where you are - no scrolling back up.
Each recap covers that one flick, not everything above it. Flick 4,000 px and you get those 4,000 px; flick again and the next recap is of the new stretch.
There's also a Feynman button: instead of restating the passage, it explains it, and is allowed to define a term the page never bothered to define.
How it runs:
- Gemma 4 E4B, on your GPU, through LiteRT-LM + WebGPU
- No API key, no account, no summarization server
- Article text never leaves the browser
Before you install — the honest part:
Running a real model in the browser isn't free. First use downloads a 2.97 GB model from Hugging Face, cached locally after that. You need WebGPU and about 22 GB of free disk space. If that's a dealbreaker, it's a dealbreaker, and I'd rather you know now than after the download bar starts.
Chrome Web Store: https://chromewebstore.google.com/detail/skim-recap/febndabjnmbmdodeoenjmnplfcalmnmc
More detail + source: https://skim-recap.vercel.app