Open Source Resource Library
Every note in this program is prepared from the sources below, and each one is openly published by its author. Bookmark this page — it is the reading list for all six tracks.
1. W3Schools — syntax and quick revision
The fastest way to check how a tag, keyword or function is written. Every page has a Try it Yourself editor, which is what we use in the first lab of each track.
| Tutorial | Used In Track | Link |
|---|---|---|
| HTML Tutorial | Web Development | Open |
| CSS Tutorial | Web Development | Open |
| JavaScript Tutorial | Web Development | Open |
| Python Tutorial | AI / Machine Learning | Open |
| DSA Tutorial | Data Structures & Algorithms | Open |
| SQL Tutorial | Cloud, System Design | Open |
| Git Tutorial | DevOps, Web Development | Open |
2. GeeksforGeeks — concepts, theory and interview questions
Use GfG when W3Schools is too short. It explains why something works, gives the complexity, and lists the interview questions asked on that topic.
| Tutorial | Used In Track | Link |
|---|---|---|
| DSA Tutorial | Data Structures & Algorithms | Open |
| Machine Learning | AI / Machine Learning | Open |
| DevOps Tutorial | DevOps | Open |
| Cloud Computing | Cloud Computing | Open |
| System Design Tutorial | System Design | Open |
| Web Development | Web Development | Open |
| Computer Networks | DevOps, Cloud | Open |
3. Stack Overflow — when your own code breaks
Nobody teaches you this in class, so we teach it here: read the error message, paste the important line into Stack Overflow, and read the accepted answer plus the comments below it. These are the tags each track lives in.
| Tag | Use It When | Link |
|---|---|---|
| javascript | DOM errors, undefined values, async confusion | Open |
| python | Import errors, virtual environments, pandas issues | Open |
| machine-learning | Shape mismatches, overfitting, metric selection | Open |
| docker | Build failures, ports, volumes, permissions | Open |
| kubernetes | CrashLoopBackOff, services, ingress | Open |
| amazon-web-services | IAM policies, VPC routing, S3 permissions | Open |
| algorithm | Wrong answer on edge cases, TLE, complexity doubts | Open |
| scalability | Architecture and system design discussions | Open |
4. takeUforward — the DSA and placement path
The DSA track follows Striver's sheets in exactly the published order. Do not jump around: the sheets are ordered so that each problem uses something you already solved.
| Sheet / Series | What It Is | Link |
|---|---|---|
| Striver A2Z DSA Course | 455 problems from basics to advanced, the main syllabus of our DSA track | Open |
| Striver SDE Sheet | Top interview problems for the placement season | Open |
| Graph Series | Complete graph playlist used in Module 5 of the DSA track | Open |
| DP Series | Dynamic programming, memoisation to tabulation to space optimisation | Open |
| takeUforward YouTube | Video explanation for every problem in the sheets | Open |
5. Other Open Sources We Use
| Source | What It Gives You | Track | Link |
|---|---|---|---|
| MDN Web Docs | The official web platform reference | Web Dev | Open |
| freeCodeCamp | Open certifications and long form video courses | All | Open |
| roadmap.sh | Visual roadmaps to track what is still left | All | Open |
| Kaggle Learn | Micro courses and open datasets | AI / ML | Open |
| Google ML Crash Course | Structured ML course with exercises | AI / ML | Open |
| Docker Docs | Official container guide | DevOps | Open |
| Kubernetes Docs | Browser based cluster tutorials | DevOps | Open |
| AWS Free Tier | Cloud practice on the provider free tier | Cloud | Open |
| Microsoft Learn | Azure learning paths with sandboxes | Cloud | Open |
| NPTEL | Recorded Indian university lectures | Cloud, DSA | Open |
| LeetCode | Where the DSA problems are actually solved | DSA | Open |
| System Design Primer | Open source system design study guide on GitHub | System Design | Open |
| Refactoring Guru | Design patterns with diagrams and code | System Design | Open |
| The Odin Project | Project based full stack curriculum | Web Dev | Open |
How To Search Like A Developer
- Read the last line of the error first — that is the actual problem
- Remove your file names and variable names before searching, keep the error text
- Add the language or tool name:
pandas merge KeyError, not justKeyError - Prefer answers with a green tick and recent comments
- Open the official documentation link that the answer quotes — verify, do not copy blindly
- Write the fix in your own notes file, in your own words
Example: turning a lab error into a good search query
Error in the lab:
TypeError: Cannot read properties of null (reading 'addEventListener')
at app.js:14Bad search: my javascript not working
Good search: javascript cannot read properties of null addEventListener
The first result explains that the script ran before the element existed in the DOM.
Using These Sources Honestly
All of the material above belongs to the people and organisations who wrote it. Pupil only arranges it into a semester plan and points you at the original.
- Always keep the original link next to a note you copied
- Credit the author in your project README
- Check the licence before reusing code in a submitted assignment
- Never paste a paid course PDF here — if it is not free and legal, it does not go in this program