About The Cookie Parser

Cookie Parser turns a request-side HTTP Cookie header into key-value pairs. It helps debug sessions, authentication state, request replay, and browser/API cookie behavior.

Parsing runs locally in your browser. Avoid pasting live production cookies because they can contain sensitive session tokens.

How to Parse Cookie Headers Online

1. Paste the raw Cookie header value from a request.
2. Click Parse Cookie.
3. Review each parsed cookie name and value.

Choosing Options Correctly

This tool parses request headers only. Use Set Cookie Parser for response-side Set-Cookie headers with attributes such as Path, Secure, HttpOnly, and SameSite.

Common Use Cases

• Debugging session or CSRF cookie values.
• Cleaning up a long browser request header for support notes.
• Checking whether a malformed delimiter hides a cookie pair.

Quick FAQ

Does this parse Set-Cookie?
No. This tool is for Cookie request headers. Use the Set-Cookie parser for response headers.

Should I paste real cookies?
No. Cookies can contain session tokens. Use redacted or test values when possible.

Why might cookie values split unexpectedly?
Malformed separators, unescaped semicolons, or copied header fragments can make parsing ambiguous.

Does parsing prove a cookie is valid?
No. It only separates names and values; expiry, domain, path, security flags, and server-side session state are separate.