Build your personal knowledge base, track your progress, and walk into any tech interview with confidence — for life. Free to start.
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A clean, focused learning experience. No clutter. Just you and the content.
Features
Structured topics, personal notes, and daily accountability — your lifelong tech companion.
Browse 300+ topics organized by subject — Java, Spring Boot, System Design, SQL, DevOps and more. All structured and searchable, growing every week.
Capture key insights while you read and save them as personal notes per topic. Review your notes anytime from your library.
Mark topics as completed, rate difficulty, and watch your subject progress bars grow. See exactly where you stand.
Get your study summary every day at 9 PM IST — today's study time, your streak, and a subject-wise breakdown.
Track your weekly study time, daily streaks, and subject-wise progress in a beautiful analytics dashboard.
Stuck on a concept? Ask AI directly while reading a topic and get context-aware explanations instantly.
How It Works
Explore 300+ real topics across Java, Spring Boot, SQL, System Design, DevOps and more — with new content added regularly. All free to browse.
Read deep-dive articles and capture key insights as personal notes while you go.
Mark topics done, rate difficulty, and watch your progress bars grow every day.
Daily email reports and streaks keep you accountable. Consistency beats talent, every time.
Testimonials
Real learners, real results.
"SadanaDev is the only platform where I actually retained what I studied. The personal notes feature is a game-changer — I go back to my notes the night before every interview."
"The daily streak emails keep me consistent. I've gone from zero daily habit to studying 45 mins every day for 3 months. My Spring Boot knowledge is now rock solid."
"System Design topics are laid out so clearly. I used SadanaDev to crack my senior engineer interview — the structured format and my own notes made revision super fast."
Free forever. No credit card. No fluff. Just focused learning that compounds over time.