A fast, offline-first trainer with hands-on coding challenges and blueprint-modeled practice certification exams across 13 languages. Start free in seconds — no signup needed.
Sample every language free. Focus on one for $10/mo, or unlock everything for life.
Everything runs in your browser — instant, private, and offline-capable.
Write and execute solutions right in the page — Python, JS, SQL and more, no setup.
Every miss comes with a clear explanation, so you learn the concept, not just the answer.
Timed, scored, blueprint-modeled exams that mirror the real thing across 13 tracks.
Progress from Beginner to God Tier with XP and ranks that keep you coming back.
Per-exam pass rates and best scores show exactly where to focus before test day.
Create a free account to back up and sync your progress across every device.
Jump straight in — no signup. Solve challenges and take a free taster exam.
Create a free account to sync XP and results across devices and the leaderboard.
Unlock one language for $10/mo, or go Pro+ for every challenge and exam — yours for life.
Free forever to sample. Go deep on one language monthly, or own it all with a single payment.
Secure checkout by Stripe. Sign in inside the app to buy or redeem a code.
No account needed to start. Free gives you the intro module of every one of the 13 tracks, plus XP, ranks and the leaderboard. To go deeper, a $10/mo Language Pass unlocks one full language, or a one-time $100 Pro+ unlocks every challenge and all 97 exams for life.
Yes. Code Armory is an offline-first PWA — once loaded it runs without a connection, and you can install it to your device.
Python, JavaScript, TypeScript, C, Go, SQL, Bash/CLI, Rust, plus regex, algorithms, data structures and programming paradigms — 13 tracks in all.
Both options exist. Pro+ is a one-time $100 payment for lifetime access to everything, including future updates — no subscription. The Language Pass is a $10/mo subscription that unlocks one language you choose; switch languages any month or cancel anytime.
Pick one track (say Python) and it unlocks in full for the month — every tier from Hatchling to God Tier. Your choice is locked for that calendar month and carries into the next unless you switch. It covers challenges for that language; exams and analytics are part of Pro+.
No. The exams are original practice/study aids modeled on public exam blueprints. They are not official certifications and are not affiliated with any exam vendor.