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Cookie Parser - Parse & Format HTTP Cookie Strings Online

Parse and format raw HTTP Cookie headers into organized key-value tables and JSON structures with URL decoding.

This tool runs in your browser.

Processed locally in your browser.

How to use

  1. 01Enter or upload the source data.
  2. 02Run the tool in your browser.
  3. 03Review, copy, or download the result.

FAQ

How are cookies structured in HTTP headers?

Cookies are transmitted as semicolon-separated key=value string pairs in HTTP request headers, which this tool parses into an interactive table.

Does the parser decode URL-encoded cookie values?

Yes. It automatically decodes URI component sequences (like %20 or %2F) so you can view actual plaintext values immediately.

Is it safe to inspect sensitive session cookies here?

Yes. Parsing executes client-side inside your browser sandbox without submitting authentication cookies over the network.