HTTP Status Code Reference

HTTP Status Code Reference is a searchable lookup of every standard HTTP response code (1xx through 5xx), covering informational, success, redirection, client error, and server error ranges. Each entry explains what the code means, when a server should return it, what commonly causes it, and a realistic example scenario so you can quickly tell codes with overlapping use cases apart (like 401 vs 403, or 301 vs 308). Filter by category, search by code or keyword, switch between a detailed card view and a compact table, and copy individual codes or the full filtered JSON list for documentation, API design, or debugging notes.

Key Features

• Full 1xx-5xx coverage

  Includes standard, WebDAV, and commonly seen unofficial codes (like 418 and 420), not just the common ones.

• Category filters

  Narrow the list to 1xx, 2xx, 3xx, 4xx, or 5xx with one tap.

• Search by code, name, or meaning

  Type "429", "redirect", or "auth" to jump straight to relevant codes.

• Card and table views

  Switch between a detailed explanation view and a scannable table for quick reference.

• When-to-use and common-causes guidance

  Each code lists a practical scenario so you know which code to return, not just what it means.

• Copy code or JSON

  Copy a single status code or export the current filtered list as JSON for docs or tests.

1. 1

   Search or filter

   Type a code, name, or keyword, or tap a category (1xx-5xx) to narrow the list.

2. 2

   Switch views

   Use table view for a quick scan or card view for full detail on each code.

3. 3

   Read the details

   Check the meaning, when to use it, common causes, and an example scenario for each code.

4. 4

   Copy what you need

   Copy a single code or the whole filtered set as JSON.

5. 5

   Share a filtered view

   The search term and category are saved in the URL so you can share a direct link.

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