Learn Any Code
By Actually Writing It

Paste any code or GitHub repo. Get a personalized interactive course with fill-in-the-blank exercises, AI tutoring, and spaced repetition. Retain 2-3x more than reading docs.

auth_middleware.py
def verify_token(request):
    token = request.headers.get("Authorization")
    if not token:
        raise ________

    payload = jwt.________(token, SECRET_KEY)
    return payload["user_id"]

# Checkpoint: Token validation raises
# the correct exception type ✔
8
Languages Supported
2-3x
Better Retention
86%
Prefer Writing Code
<60s
Course Generation

Three steps to mastery

No more passive tutorials. CodeTeach turns any code into an active learning experience.

1

Paste Your Code

Drop in any code snippet, describe what you want to learn, or paste a GitHub repo URL. CodeTeach analyzes it instantly.

2

AI Generates Your Course

Claude AI creates a multi-chapter interactive course with fill-in-the-blank exercises, checkpoints, hints, and explanations tailored to your level.

3

Learn by Doing

Fill in the blanks, run your code, pass checkpoints. Spaced repetition reinforces what you learned. Track your progress with Code DNA.

Everything you need to master code

Built for developers who learn by doing, not watching.

GitHub Repo Reverse Engineering

Paste a GitHub URL. CodeTeach clones the repo, analyzes architecture, ranks files by learnability, and generates a full interactive course teaching you how the codebase works. Onboard to any project in hours, not weeks.

$ codeteach analyze github.com/vercel/next.js

Analyzing repository...
Detected: TypeScript + Next.js
Architecture: Monorepo (Turborepo)
Key files: 18 selected from 2,400

Generating 6-chapter course...
Ch 1: Router Architecture
Ch 2: Server Components
Ch 3: Build Pipeline
Course ready. 24 lessons.

AI Socratic Tutor

Stuck on a blank? The AI tutor asks guiding questions instead of giving answers. Powered by Claude, it adapts to your level and teaches you to think like a programmer.

Audio Walkthroughs

Two AI hosts discuss your code in a podcast-style format. Listen while commuting, then jump into exercises when you're ready.

Code DNA Profile

Your personalized skill radar: control flow, data structures, async, OOP, and more. Based on actual coding performance, not quizzes.

VS Code Extension

Right-click any code in VS Code to generate a lesson. Learn without leaving your editor. Copilot for learning.

Multi-Language Execution

Run Python, JavaScript, TypeScript, Java, C, C++, Go, and Rust directly in the browser. Real code execution, real feedback.

Live Multiplayer

Race to fill the blanks against opponents matched by skill. Real-time progress bars, leaderboards, and weekly challenges.

PR Code Reviews

Paste a pull request URL. CodeTeach explains what changed, why, and generates exercises on the new patterns. Learn from code reviews.

Enterprise SSO & Team Onboarding

SAML 2.0 and OpenID Connect. Upload your company's repos and generate personalized onboarding courses. "Week 1: Auth Service, Week 2: Payments." New hires ramp up 3x faster. Admin dashboard with progress tracking, seat management, and domain verification.

Acme Corp Onboarding

New Hire: Sarah (Backend Eng)

Week 1: Auth Service ✅
  7/7 lessons complete
Week 2: Payments API
  3/8 lessons complete
Week 3: API Gateway
  Not started

Skill Growth: +42% this month

Spaced Repetition

SM-2 algorithm schedules reviews at optimal intervals. Swipeable flashcards on mobile. Never forget what you learned.

Start free, scale with your team

Every plan includes the full gamification system: XP, streaks, achievements, and leaderboards.

Free

For individual learners

$0/month
  • 3 AI-generated courses/month
  • Python code execution
  • Static hints
  • Spaced repetition
  • Full gamification
Get Started

Teams

For engineering orgs

$29/user/mo
  • Everything in Pro
  • SSO (SAML + OIDC)
  • Team dashboard + analytics
  • Custom course libraries
  • Codebase onboarding courses
  • Admin controls + API access
  • Priority support
Contact Sales

Modern stack, built for scale

Claude AI
React
TypeScript
Hono
PostgreSQL
Drizzle ORM
Clerk Auth
Pyodide
WebContainers
Vite
Tailwind CSS
Turborepo

Stop reading.
Start building.

Join developers who are learning code 2-3x faster with active recall and AI-powered personalization.

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