jor1k is a JavaScript-based emulator of the OpenRISC 1000 architecture that is capable of running a full Linux system directly within a web browser. It demonstrates how complex system-level emulation can be achieved using web technologies, including JavaScript and WebAssembly. The emulator supports multi-core configurations and can simulate different CPU architectures, including experimental RISC-V implementations. One of its most notable features is the ability to compile and execute C programs inside the browser, effectively turning it into a fully functional development environment. It includes networking support and interactive terminal interfaces, allowing users to interact with the emulated system in real time. The project is widely recognized as a proof of concept for browser-based operating system emulation and has been used in educational contexts to demonstrate low-level computing concepts.

Features

  • Browser-based emulation of OpenRISC 1000 architecture
  • Ability to run a full Linux system in a web environment
  • Support for compiling and executing C programs in-browser
  • Multi-core and experimental CPU configuration support
  • Interactive terminal and networking capabilities
  • WebAssembly integration for improved performance

Project Samples

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Categories

Emulators

License

BSD License

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Additional Project Details

Operating Systems

Linux

Programming Language

JavaScript

Related Categories

JavaScript Emulators

Registered

2026-04-07