General / Thinking
- Untools: https://untools.co/
- James Clear: https://jamesclear.com/
- Farnam Street: https://fs.blog/
- Your Logical Fallacy Is: https://yourlogicalfallacyis.com/
- Your Bias Is: https://yourbias.is/
Fitness / Health
- Darebee: https://darebee.com/
Reading / Writing
- QuillBot: https://quillbot.com/
- 12ft Ladder: https://12ft.io/
- Open Library: https://openlibrary.org/
Design
- PDF24 Tools: https://tools.pdf24.org/en/
- Unsplash: https://unsplash.com/
- The Noun Project: https://thenounproject.com/
Software Development
- Stack Overflow: https://stackoverflow.com/
- O’Reilly: https://learning.oreilly.com/
- roadmap.sh: https://roadmap.sh/
- cheat.sh: https://cheat.sh/
- DevHints.io: https://devhints.io/
- Learn X in Y minutes: https://learnxinyminutes.com/
- Baeldung (for Java/Spring): https://www.baeldung.com/
What would you add to this list? Let me know!