Not a screenshot. Not a video. A clickable, draggable, real GNOME-style desktop with windows, a dock, a top panel, and 25+ apps.
75+ commands that actually work: ls, cd, grep, find, awk, sed, chmod, ps, kill, sudo, apt, ping, curl, dig, and more. With pipes and redirects.
Actual CPython running in the browser via Pyodide. NumPy, pandas, sympy, scikit-learn — the full stdlib. No tricks.
sql.js compiles SQLite to WebAssembly so you can run real SELECT, JOIN, CTE, and window function queries against a demo DB.
Tux is a Linux-focused AI assistant built into the desktop. Ask it anything about shell commands, Python, or how to use LinuxSim itself.
Finish a challenge and you unlock a real Apex Online Academy discount code — 14 free days per challenge, stackable up to 77 days.
15 hidden flags across the filesystem. Teaches grep, find, /proc, /etc/passwd, and sudo through play.
11 auto-graded exercises on permissions, pipes, environment variables, and log inspection.
8 Python problems of increasing difficulty. Real Pyodide execution with hidden test cases.
6 challenges teaching init, add, commit, branch, merge — in a dedicated git sandbox.
10 interactive vim lessons. Real modal editing with hjkl, dd, yy, :wq and more.
8 regex problems from digits to capture groups. Live match highlighting in free mode.
Click "Launch Sim" above. The entire Linux desktop boots in your browser in seconds. Nothing gets installed on your computer.
Open the Terminal. Type ls, pwd, cd /etc. Open the Files app. Open the Python REPL. Break things on purpose — you can't damage anything.
Click Treasure Hunt or Labs or Code Golf from the desktop. Each one teaches you something real. When you finish, you get a reward code.
Your reward code works at Apex Online Academy — a learning platform with 175+ courses. Each code adds 14 days to any paid subscription.
LinuxSim is free. No signup. No credit card. Open the sim and start typing.
🚀 Launch LinuxSim