HTTP Status & MIME Types
Searchable reference of HTTP status codes and MIME content types.
All lookups happen locally in your browser, so your searches stay on your device and nothing is uploaded to a server.
Converting requests? Try the cURL to fetch converter.
About HTTP Status & MIME Types
This http status codes reference lets you search every standard response code and MIME content type from one fast, searchable list. Type a number like 404 or 301, a phrase like "not found", or a file extension like .png or application/json, and the matching entries appear instantly with one-click copy. It is built for web developers, backend engineers, and QA testers who need to confirm what a 422 means, pick the right content-type for a response header, or find the MIME for an upload. Status codes are grouped and color-coded by class (2xx, 3xx, 4xx, 5xx) so you can scan http response codes at a glance, and a quick tab switch jumps you to the full MIME types list. Everything runs locally in your browser, so your searches are processed on your device.
Features
- Search HTTP status codes by number, like 404 or 503
- Search by phrase, such as "not found" or "gateway timeout"
- Status codes color-coded by class: 2xx, 3xx, 4xx, 5xx
- Browse and filter MIME content types by extension or type
- Look up MIME types by file extension like .png or .svg
- Copy any status code or MIME string with one click
- Toggle between HTTP Status Codes and MIME Types tabs
How to use the HTTP Status & MIME Types
- Choose the HTTP Status Codes or MIME Types tab.
- Type a code, phrase, or file extension into the search box.
- Scan the filtered results, grouped by class for status codes.
- Click the copy button to grab the code or MIME string.
Example
Input
404
Output
404 Not Found (4xx)
Searching 404 returns the status code, its text, and its class.
Common errors & troubleshooting
- Searching for a code returns nothing. — Make sure you are on the HTTP Status Codes tab, not MIME Types, and that the code is a standard one (for example, 418 exists but custom vendor codes may not).
- A file extension search shows no MIME type. — Switch to the MIME Types tab and try the extension with or without the leading dot, or search by the type name like application/json instead.
- Expecting a non-standard code like 419 or 599. — This reference covers standard IANA status codes; framework- or CDN-specific codes outside the spec are not listed.
Frequently asked questions
- What is the HTTP status codes reference?
- It is a searchable lookup of every standard HTTP status code and MIME content type. Type a number, phrase, or file extension and matching entries appear instantly with one-click copy.
- What does HTTP status code 404 mean?
- 404 Not Found means the server could not find the requested resource. Search 404 in this HTTP status reference to see its text and 4xx class.
- How do I find the right MIME content-type for a file?
- Switch to the MIME Types tab and search by file extension like .png or .svg, or by the type name. Then copy the exact content-type string for your response header.
- What is the difference between 4xx and 5xx status codes?
- 4xx codes indicate client errors, such as a bad request or missing resource, while 5xx codes indicate server errors. This reference color-codes both classes so you can tell them apart at a glance.
- Can I search status codes by name instead of number?
- Yes. Type a phrase like "gateway timeout" or "unauthorized" and the matching status codes appear, so you do not need to remember the exact number.
- Does this HTTP reference send my searches anywhere?
- No. The HTTP status codes reference runs entirely in your browser, your searches never leave your device.
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