Open Comet
Browser sidepanel agent that browses, extracts, and automates for you
Open Comet is a browser extension that puts an autonomous AI agent in your sidepanel, capable of conducting multi-step research, filling forms, extracting structured data, and executing workflows across any website — without sending your browsing history to a cloud server. The architecture is genuinely different from most "AI browser" products. It uses DOM-plus-vision technology to handle dynamic, JavaScript-heavy sites where pure DOM inspection fails. Research loops are inspired by the STORM methodology (multi-perspective iterative synthesis), and outputs can be exported to JSON or CSV. Crucially, it supports both BYOK cloud models and local Ollama deployments — meaning you can run the whole stack on your machine with zero data leaving your device. The "Reusable Skills" system is the most interesting feature: you can record workflows (research a competitor, extract product specs, monitor a pricing page) and replay them on demand. This is closer to Playwright automation than traditional AI chat, and that's a good thing. Built as a solo indie project by Prince Chouhan, Open Comet launched at #11 on Product Hunt on April 13 with a zero-data privacy architecture that stands out in a category full of cloud-dependent tools. It's rough around the edges but the foundations are right.
Panel Reviews
“DOM plus vision for dynamic sites, local Ollama support, STORM-inspired research loops, reusable skills — this hits the right technical notes. The zero-data architecture isn't just marketing; it means you can actually use this on client work without signing an NDA waiver first.”
“Autonomous browser agents have a reliability problem that no architecture can paper over: the web breaks in unpredictable ways. One JavaScript update, one CAPTCHA, one cookie banner, and your 'autonomous' agent stalls. The reusable skills concept is promising but these workflows will require constant maintenance.”
“The browser is the operating system for most knowledge work. An agent that lives in the sidepanel and can act across every tab is a more natural form factor than a separate app. BYOK plus local model support means this doesn't get killed when some startup runs out of runway.”
“Research assistant that exports to CSV and doesn't upload my browsing to anyone's servers? That's the product I've been waiting for. The STORM-inspired synthesis approach actually produces structured outputs rather than a wall of text.”