compile() turns learning to code into a five-minute daily habit — real, runnable exercises, instant feedback from Ada, and a streak you won't want to break. Most learners ship a working program by lesson three.
68,000+ learners writing real code every day.
47 days
personal best12.4k
+180 today
Twelve units from your first console.log() to a working
to-do app — every lesson under six minutes, every one graded by actually running your code.
Every finished lesson, quiz, and boss challenge banks XP toward your next level.
Syntax, data types, and your first script — for the language most beginners start with.
Stacks, queues, recursion, and Big-O — explained the way you'll actually use them in interviews.
Branch, commit, merge, and resolve your first real conflict — no more zip-file backups.
Open the app and your next lesson is already queued — no syllabus to plan, no video to skip through.
Every exercise runs in an actual sandboxed environment — you're not multiple-choicing your way through syntax.
Wrong output? Ada explains exactly what broke and why — like a senior engineer looking over your shoulder.
Finish your daily goal, bank the XP, and watch your path fill in — one lesson compounds into a real skill.
83%
Of learners are still coding daily after 30 days.
2.4M
Lessons completed by the community this month.
14 min
Average time to a first working program.
4.9/5
Rating across 38,000+ learner reviews.
"I'd bounced off three different coding trials before this. The daily streak is the only thing that's ever made me actually show up and finish a lesson."
"Ada catching my off-by-one error at 11pm and explaining why, instead of just saying 'wrong,' is the whole product for me."
Everything you need to find out if the daily habit sticks.
For learners ready to go all in on the streak.
The same Pro plan, priced for people who already know they're staying.
None. Lesson one assumes you've never written a line of code — Ada adjusts pace and hints the moment you start moving faster than average.
Everyone starts with JavaScript or Python fundamentals, then branches into TypeScript, SQL, Git, and data structures & algorithms as you build out your path.
Most lessons take four to seven minutes — short enough for a coffee break, real enough that you're writing and running actual code every time.
Pro learners get two streak freezes a month for exactly this. Free learners restart at zero — but every unit you've already finished stays unlocked.
Yes — Pro is month-to-month with no contract. Cancel any time and keep every certificate and XP total you've already earned.
Create a free account, pick a track, and finish your first lesson in the next five minutes. No credit card, no setup — just a terminal and a streak waiting to start.