A real terminal, a full IDE and grading the second you hit submit, all in your browser. Write C, C++ or Python, submit, and see exactly which test failed and why, down to a missing newline.
It's free and open to everyone 👉 grademe.io
Start with Learn C, a path from your first program down to the system underneath, where every chapter ends on a timed checkpoint. Then take on Challenges: a series of exercises against one clock, level after level. Each challenge moves your Elo, every exercise you pass earns XP, and the leaderboards show where you stand.
When your code does something you don't understand, open the Visualizer. Step through it line by line and watch the stack, the heap and every pointer between them, with Valgrind flagging leaks and invalid memory accesses.
GitHub sync pushes your passing solutions to a repository you own. In Studio you write your own exercises and challenges with their tests, then share them with everyone. And if you'd rather stay in your terminal, the CLI is right here (see below).
Un vrai terminal, un IDE complet et une correction à la seconde où tu soumets, le tout dans ton navigateur. Tu codes en C, C++ ou Python, tu soumets, et tu vois exactement quel test a échoué et pourquoi, jusqu'au retour à la ligne oublié.
C'est gratuit et ouvert à tout le monde 👉 grademe.io
Commence par Learn C, un parcours qui part de ton premier programme et descend jusqu'au système, chaque chapitre se terminant par un checkpoint chronométré. Ensuite, attaque les Challenges : une série d'exercices contre la montre, niveau après niveau. Chaque challenge fait bouger ton Elo, chaque exercice réussi te rapporte de l'XP, et les classements te montrent où tu en es.
Quand ton code fait un truc que tu ne comprends pas, ouvre le Visualiseur. Tu avances ligne par ligne et tu vois la pile, le tas et chaque pointeur, avec Valgrind qui repère les fuites et les accès mémoire invalides.
La synchro GitHub pousse tes solutions validées sur un dépôt qui t'appartient. Dans le Studio, tu écris tes propres exercices et challenges avec leurs tests, puis tu les partages avec tout le monde. Et si tu préfères rester dans ton terminal, le CLI est juste ici (voir plus bas).
This repository is the Grademe command line client. Same challenges, same grading, but you write the code in your own editor and submit from your terminal. Your account, your progress and the leaderboard all live on grademe.io, so sign up there first.
git clone https://github.com/JCluzet/Grademe.git
cd Grademe
makeYou need Node.js 22 or newer. Each make pulls the latest version, rebuilds what changed and starts the client. The first run opens your browser to sign in with your grademe.io account.
No Node.js on your machine? Install the native build instead. It updates itself in the background:
curl -fsSL https://grademe.io/install.sh | bashPick a challenge and confirm it, the clock starts. The subject lands in subject/subject.en.txt. Put your files in submission/<assignment>/, then type grademe at the prompt to submit. Tests stream in as they run: pass and you move on to the next level, fail and you get the trace plus a cooldown before the next try.
The prompt is not a shell. It understands grademe, status, workspace, result, help and finish. Keep it in one tab and your editor in another. Your progress is saved on your account, so you can quit and come back later (the clock keeps running).
make ARGS="--dir ~/practice" # write the subject and submissions somewhere else
make ARGS="--challenge <slug>" # jump to a challenge without starting it
make ARGS="logout" # sign out and revoke this device
make test # run the test suiteWant every exercise, no cooldown and the full IDE in your browser? It's all on 👉 grademe.io
Clone le repo, lance make et connecte-toi avec ton compte grademe.io. Il te faut Node.js 22 ou plus, sinon passe par la commande curl juste au dessus.