Your path from zeroto paid developer.
Starting at $9.99/month · Free 7-day trial
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Active Learners
Top Coders
Maria DevOps
25,100
Hernando Abella
28,400
Alex Code
23,450
Sofia AI
Lv 15 · 31 badges
Carlos Backend
Lv 14 · 28 badges
Latest releases
Fresh off the press. New books to level up your skills right now — and a whole library waiting behind them.
Trusted by Developers
Real feedback from readers improving their coding skills.
“I picked up Python Cheat Sheet because I wanted a quick way to refresh Python without heavy textbooks.”
Jeff Kikel
Verified Reader
“A treasure trove of Python algorithms. Perfect for sharpening programming skills.”
Randall McMurphy
Verified Reader
“Simple but very useful Python one-liners. Extremely practical.”
Bobby Plath
Verified Reader
Your transformation path
Pick one of the 5 career trajectories — built from 19 learning careers — then follow it stage by stage: foundations, specialization, monetization, and scale.
Full-Stack / Backend Engineer
The most direct path to your first tech job.
Build complete applications and land your first remote role with an international salary.
Month 6–10
$110k–$160k
15
4
Connected learning
Foundations
M0–2Write code in JavaScript and C from scratch — logic, structure and fundamentals.
Specialization
M2–6Ship APIs and full-stack apps with professional patterns and architecture.
Monetization
M6–9Pass technical interviews and land your first contract or job.
Scale
M9–24Move up to senior and/or launch your own digital products.
How much could you earn?
Choose your path, tell us where you are today and how many hours you can dedicate. The simulator projects your income month by month.
Your path
Region
Where are you today?
Hours per week
Your goal
Estimated first income
Month 6
At month 12
$6,910/mo
Month 6
$6,042
Month 12
$6,910
Month 24
$8,646
Build complete applications and land your first remote role with an international salary.
Annual salary range in United States: $60,000 – $85,000. Cumulative at 24 months: $139,530.
* Figures are directional estimates based on market ranges and do not guarantee income. Your results depend on consistency, portfolio and professional context.
Learn by Building
Interactive tutorials you can start right now. Read the lessons, write code in the browser, and run it instantly.
Backend Course
BeginnerOne end-to-end backend journey: REST APIs, FastAPI async, JWT auth, PostgreSQL, GraphQL, gRPC, message queues, WebSockets, API gateways, sagas, circuit breakers, OAuth2, and OWASP security.
AI Course
BeginnerOne end-to-end AI journey: machine learning, MLOps, agentic AI, prompt engineering, and LLM applications.
DevOps Course
BeginnerOne end-to-end DevOps journey: CI/CD, containers, orchestration, infrastructure as code, and deployment pipelines.
Data Course
BeginnerOne end-to-end data journey: analytics, BI, and SQL foundations — pipelines, warehouses, and dashboards.
Frontend Course
BeginnerOne end-to-end frontend journey: HTML, CSS, JavaScript, React, and modern web UI development.
Software Architecture Course
IntermediateOne end-to-end architecture journey: system design, C4 model & ADRs, clean architecture, DDD, CQRS, event-driven, microservices patterns, API design, scalability, distributed systems, and architecture documentation.
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Everything you need to go from zero to pro.
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Download the Bonus Books
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250+ Killer JavaScript One-Liners
Write smarter, faster, and more elegant JavaScript with concise solutions.
120 Advanced JavaScript Interview Questions
Get ready to crush technical interviews with deep, well-explained answers.
150+ Python Pattern Programs
Boost your problem-solving power with pattern-based logic exercises.
SQL COOKBOOK
Master database logic and complex queries with practical SQL examples.
50 Java Concepts Every Developer Should Know
Solidify your foundation in one of the world's most powerful languages.
200 C++ Programs for Beginners
Learn by doing with a curated collection of real, working C++ programs.
Resources
Handy tools, apps and references to speed up your day-to-day as a developer.