More than just color badges — a complete toolkit built for developers who are learning.
⭐
Smart prerequisites
Each section lists exactly what you need to know first — required and optional — sorted by learning order, each linking directly to the relevant doc page.
👆
Track your mastery
One click marks a prerequisite as approached, two clicks as mastered. Your progress syncs across MDN, javascript.info and all supported sites.
📊
Page summary
See at a glance how many beginner, intermediate and advanced sections a page has — and which prerequisites you still need to master before diving in.
🎯
Focus mode
Hide beginner, intermediate or advanced sections independently so you can read exactly what's relevant to your current level — nothing more.
📋
Export your study plan
Download a clean, structured study plan for any page — showing all sections by level, your read status, and the prerequisites still to cover.
💡
Next reading suggestions
At the end of every page, Dev to Hero suggests what to read next based on the concepts you just explored — keeping your learning path moving forward.
