I'm curious about computers
Interactive activities that teach how computers think. No reading walls, no accounts, just play.
Open Source · Free Forever
DURA
Engineering education, hardened by design.
From absolute zero to engineering leadership. 10 phases. 2,850 hours. Standards-backed. Free forever.
Where are you on your journey?
DURA meets you where you are — from first curiosity to engineering leadership.
I'm learning to code
Start from absolute zero. A 35-question assessment finds where you belong, then guides you step by step.
I'm building my career
12 career tracks from Frontend to CTO. Each one maps skills to real job descriptions and industry standards.
I want to build something
100 project tutorials. Pick one, build it, deploy it. From CLI tools to AI agents.
I'm a teacher
Browse the curriculum, export resources, and track which standards each lesson covers.
I'm already learning
Pick up where you left off.
Ten phases. One path.
A complete arc from first keystroke to engineering leadership.
Phase 0
Foundations
Computing literacy & first principles
Explore
- Hours
- 120
- Modules
- 8
- Lessons
- 64
Phase 1
Programming
Syntax, semantics, problem solving
Explore
- Hours
- 240
- Modules
- 12
- Lessons
- 96
Phase 2
Systems
Memory, processes, the machine
Explore
- Hours
- 280
- Modules
- 14
- Lessons
- 112
Phase 3
Data Structures & Algorithms
The vocabulary of computation
Explore
- Hours
- 320
- Modules
- 16
- Lessons
- 128
Phase 4
Databases
Modeling, querying, persistence
Explore
- Hours
- 260
- Modules
- 12
- Lessons
- 100
Phase 5
Web & Networks
Protocols, browsers, the wire
Explore
- Hours
- 280
- Modules
- 14
- Lessons
- 112
Phase 6
Software Engineering
Design, testing, collaboration
Explore
- Hours
- 300
- Modules
- 14
- Lessons
- 116
Phase 7
Cloud & DevOps
Ship, scale, observe
Explore
- Hours
- 280
- Modules
- 12
- Lessons
- 100
Phase 8
Security & Reliability
Trust, threat models, resilience
Explore
- Hours
- 280
- Modules
- 12
- Lessons
- 100
Phase 9
Leadership
Architecture, teams, judgment
Explore
- Hours
- 290
- Modules
- 12
- Lessons
- 96
Built for how learning actually works.
Four pillars. No shortcuts. No fluff.
Mastery-Gated
You don't move on until it sticks. Progress is earned, not skipped.
FSRS Repetition
Spaced review scheduled by the science, tuned to your forgetting curve.
Code Sandboxes
Run real code in real environments. No copy-paste tutorials.
Verified Dictionary
Every term traced to a primary source. Definitions you can trust.
Mapped to industry standards
ACM CS2023
ACM/IEEE Computing Curricula 2023
SWEBOK v4
Software Engineering Body of Knowledge
SFIA 9
Skills Framework for the Information Age
Bloom's Taxonomy
Cognitive learning hierarchy