Hover – IDE style hover documentation on any webpage
I thought it would be interesting to have ID style hover docs outside the IDE. Hover is a Chrome extension that gives you IDE style hover tooltips on any webpage: documentation sites, ChatGPT, Claude, etc. How it works: - When a code block comes into view, the extension detects tokens and sends the code to an LLM (via OpenRouter or custom endpoint) - The LLM generates documentation for tokens worth documenting, which gets cached - On hover, the cached documentation is displayed instantly A few things I wanted to get right: - Website permissions are granular and use Chrome's permission…
Hover – IDE style hover documentation on any webpage launched on January 4, 2026 with 58 votes, #514 of 14,585 launches that month and more than 95% of that year's launches.
In plain words
Hover is a Chrome extension that displays IDE-style documentation tooltips on any webpage containing code. When code blocks appear, the extension detects tokens and sends them to an LLM to generate documentation, which is cached for instant display on hover. Users can configure it with OpenRouter or a custom endpoint like AWS Bedrock, and permissions are granular, allowing the extension to run only on approved sites. It's designed for developers reading code on documentation sites, ChatGPT, Claude, and similar platforms.
written from the facts on this page · September 2026
From the sources
Contribute to Sampsoon/hover development by creating an account on GitHub.
Hover over code on any webpage to see documentation. Like your IDE, but everywhere. Works on documentation sites and AI chat apps like ChatGPT and Claude. bun install && bun run build Load in Chrome: Navigate to chrome://extensions → Enable Developer Mode → Load Unpacked → Select the dist_chrome folder Setup 1. Configure API Click the extension icon, go to Settings , and add your OpenRouter API key or configure a custom OpenAI client compatiblefrom github.com
In the maker’s words, at launch
I thought it would be interesting to have ID style hover docs outside the IDE. Hover is a Chrome extension that gives you IDE style hover tooltips on any webpage: documentation sites, ChatGPT, Claude, etc. How it works: - When a code block comes into view, the extension detects tokens and sends the code to an LLM…
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