nanobrowser
Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Ope…
About nanobrowser
Nanobrowser is an open-source AI web automation tool that runs in your browser. A free alternative to OpenAI Operator with flexible LLM options and multi-agent system.
Support the project by sponsoring us - every contribution helps keep Nanobrowser free and open source!
Nanobrowser's multi-agent system analyzing HuggingFace in real-time, with the Planner intelligently self-correcting when encountering obstacles and dynamically instructing the Navigator to adjust its approach—all running locally in your browser.
nanobrowser is an open-source project written primarily in TypeScript, with 13k stars on GitHub. It was last updated in November 2025.
nanobrowser vs. the alternatives
All browser & computer use →| Agent | Stars | Pricing | ||
|---|---|---|---|---|
| nanobrowser | 13k | TypeScript | Apache-2.0 | Open source |
| UI-TARS-desktop | 38k | TypeScript | Apache-2.0 | Open source |
| skyvern | 22k | Python | AGPL-3.0 | Open source |
| page-agent | 22k | TypeScript | MIT | Open source |
| midscene | 14k | TypeScript | MIT | Open source |
| Agent-S | 12k | Python | Apache-2.0 | Open source |
