UI TARS Desktop

UI TARS Desktop is an open-source multimodal AI agent stack from ByteDance that brings vision-driven 'computer use' to your everyday machine. Rather than relying on accessibility APIs or brittle DOM selectors alone, its underlying vision-language models (the UI-TARS / Seed-1.5-VL family) perceive raw screenshots and rendered UI frames, then decide and execute the clicks, typing, and navigation needed to complete a task — much like Claude Computer Use or OpenAI's computer-using agent, but open-source and self-hostable. The product spans several surfaces. UI TARS Desktop is a native Electron application that lets the agent take over and operate your whole computer; Agent TARS focuses on the browser, controlling web pages through natural language with seamless DOM integration; and the stack extends into the terminal and production environments. This makes it a general-purpose agent platform rather than a single-purpose tool: you can ask it to fill out a web form, orchestrate a multi-app desktop workflow, or automate repetitive GUI tasks that resist traditional scripting. A major draw is local deployability. The UI-TARS-1.5-7B model is small enough to run on consumer hardware, so privacy-sensitive users can keep agent execution entirely on their own machine rather than streaming screenshots to a third-party cloud. The project has become one of the most significant open-source agents available, accumulating tens of thousands of GitHub stars shortly after release. UI TARS Desktop is aimed at developers, automation engineers, and power users who want an open, auditable computer-use agent — whether to build on top of the stack, self-host for privacy, or experiment with GUI automation that generalizes across applications.