HTTP Status Codes Reference

The complete HTTP status codes reference — fast, beautiful, and 100% free.

Every developer eventually forgets the difference between 401 and 403, or whether to use 422 or 400 for a validation error. This app is the cheatsheet you'll actually want to keep on your home screen.

FEATURES

1. ALL ~60 STATUS CODES — From 100 Continue to 511 Network Authentication Required, organized by category (1xx Informational, 2xx Success, 3xx Redirection, 4xx Client Error, 5xx Server Error).

2. RICH DETAILS FOR EVERY CODE

- Plain-English description

- When to use it (and when not to)

- Common real-world scenarios

- Pro tips & gotchas (401 vs 403, 301 vs 308, 400 vs 422, and more)

- RFC reference

- Related codes you can jump straight to

3. READY-TO-COPY CODE SAMPLES

For each status code, get example responses in:

- Raw HTTP

- cURL

- Python (FastAPI)

- Node.js (Express)

- Browser Fetch API

- Go (net/http)

4. QUIZ MODE — Multiple-choice questions to test your knowledge. Great for interview prep or just sharpening your memory.

5. FAVORITES — Star the codes you reference most often.

6. INSTANT SEARCH — Search by number, name, or any keyword in the description.

7. BEAUTIFUL DARK MODE — Easy on your eyes during long debugging sessions.

8. 100% OFFLINE — All data is bundled with the app. No internet required, no tracking, no ads.

9. COMPLETELY FREE — No paywalls, no premium tier, no ads. Every feature, unlocked.

Perfect for: backend developers, API designers, frontend developers debugging fetch calls, QA engineers, technical interviewers, students learning HTTP, and anyone who's ever Googled "what does 502 mean again?"