CodeLoop

Code, run, score — in the browser

CodeLoop gives you coding tracks, exercises, problems and projects with an in-browser executor — no setup for students. Earn XP for solving problems and climb the leaderboard.

two-sum.js +50 XP
function twoSum(nums, t) {
  const map = new Map();
  for (let i=0; i<nums.length; i++){
    // ✓ 8 / 8 tests passing
  }
}
Capabilities

Everything in one place

In-browser executor

Students write and run code in the browser — zero local setup, zero “works on my machine”.

Problems & projects

Curated tracks of exercises, problems and projects with autograded test cases.

XP & progress

Earn XP for solved problems and track skill progress across tracks.

Leaderboards

Weekly leaderboards turn practice into friendly competition that drives reps.

Hands-on coding practice that grades itself and keeps students coming back to solve more.

Try CodeLoop on your own brand

Spin up a branded workspace and switch on every feature — free.

Get started