The right tools can turn hours of frustration into minutes of flow. These 10 websites solve real developer problems — from debugging and testing to learning and productivity.
1. JSON Crack
Visualize complex JSON data as interactive graphs and trees. Perfect for debugging large API responses.
2. Hoppscotch Collections
🔗 https://hoppscotch.io/collections
Save, organize, and share API request collections without heavy tooling.
3. CSS Layout Generator
Build Flexbox and Grid layouts visually and copy clean CSS instantly.
4. DevHints
Fast, minimal cheat sheets for languages, frameworks, and command-line tools.
5. ExplainGit
🔗 https://onlywei.github.io/explain-git-with-d3/
Understand Git commands visually instead of memorizing them blindly.
6. QuickRef.me
Modern, up-to-date developer cheat sheets for daily reference.
7. DB Diagram
Design database schemas using simple DSL and export SQL instantly.
8. Lorem Picsum
Generate random placeholder images for UI and frontend testing.
9. Regex Vis
Visualize how regular expressions work step by step.
10. CanInclude
🔗 https://caninclude.glitch.me