HTTP Status Code Reference

About this tool

A searchable reference of HTTP status codes and what they mean. Type a code or keyword to filter.

Privacy

This tool runs entirely in your browser. Your data is processed locally and never uploaded to a server.

How to use this tool

1. Type an HTTP status code like 404 or a keyword like redirect into the search field.
2. Watch the list filter instantly to matching status codes and meanings.
3. Click or read the matching entry to see the code name and what it means.
4. Clear the search field to bring back the full reference list.

Step by step, what happens

1. The tool starts with a reference list of HTTP status codes and their meanings.
2. As you type, it filters the list to only entries that match the code or keyword.
3. It checks both the numeric code and descriptive text, so you can search by either one.
4. The filtered results update immediately, making it easy to compare similar statuses like 301, 404, and 500.

Worked example

You want to confirm what 404 means while checking a broken link in your app.

Input: 404

1. Enter 404 in the search box.
2. The tool narrows the reference list to the matching status entry.
3. You read the meaning next to the code to confirm that the resource was not found.

Tips and common mistakes

• Search by the exact code if you already know it, or use a keyword like unauthorized, redirect, or server error if you do not.
• If you only remember part of the message, type that part and let the filter find the closest match.
• Use the tool to distinguish similar statuses, such as 301 versus 302, before deciding how your app should respond.
• If no result appears, try a different spelling or a code family like 4xx or 5xx if the tool supports keyword matching.

Frequently asked questions