Stored only in this browser
My progress
Codelix has no accounts and stores nothing on the server. To continue on another device, export your progress as a file and import it there.
Learning areas
Badges
🏅 Your certificate
A certificate with your real progress – to print or save as PDF. Type your name and the preview shows right away how it looks. Your name is only shown and printed, never stored.
In the print dialog choose “Save as PDF” to keep it as a file. For the colours, turn on “Background graphics”.
⏰ Learning reminder
A little regularly beats a lot rarely. Pick your days and a time – you'll get a calendar file for your phone or computer. It's created right here in your browser.
Your data
Only this is stored: completed lessons, your latest code for each task, the number of attempts, your streak, your training points, the placement result, whether the book bonus is unlocked, and light/dark mode.
📱 Move to another device
No account and no server: scan the QR code with the camera of the other device – or copy the code and paste it there below. What moves over: finished lessons, badges, XP and reviews – no name and no task code.