What to build with Xenon?
Build agentic, experimental, niche or fully personal browser experiences without sacrificing performance or security — and without rebuilding everything from scratch.
Built for the age of the agentic web
Build Faster
Skip the grindwork and just write the code that matters.
Secure by Default
Rely on a central sandboxing and permission system with proper defaults and granular control from day one.
Build with web technologies
Build as close to web standards as possible instead of fiddling with C++ or Node.js APIs. (While Chromium only for now, we are working on Electron and Firefox compatibility)
Build on Darc or pick just the parts you need
Darc is a full-featured reference browser that has everything you expect from state-of-the-art agentic browsers
Key Features:
- Efficient tab management with hibernation, history, data-containers, session management, spaces, tab groups and more
- Advanced central permission system with granular control
- Automation Layer and Agent Sidebar built from the ground up for lowest latency experiences, not on top of slow and resource-hungry test frameworks
- Support for different view modes like tabs, canvas or tile view

Learn more
See what makes Xenon special
Performance and Resource Utilisation
Reusing an already installed browser engine avoids redownloading and installing hundreds of megabytes for every project.
Configurable resource limits and smart tab hibernation allow running thousands of virtual tabs without performance and resource hits.
APIs are a thin layer on top of the established and optimized infrastructure driving Chrome today.
We do not rely on outdated and inefficient automation libraries made for testing. Instead, automation features are enabled surgically only where needed and using the lowest impact layer.
