Split a long Cookie header into readable session, user and preference values.
Web tool
Cookie Parser Tool
Paste an HTTP Cookie header and instantly split it into readable name-value pairs. This free cookie parser can URL-decode cookie values and export the result as JSON.
session_id=abc123;
theme=dark;
tracking={"source":"google"}
theme=dark;
tracking={"source":"google"}
Useful for developers, testers, browser debugging, API work and quick cookie inspection.
Parse and decode cookies
Paste a Cookie header such as name=value; theme=dark. The tool separates each cookie, decodes URL-encoded values and shows the result in a table.
What is a Cookie header?
A Cookie header is sent by the browser to a website and usually contains multiple name-value pairs separated by semicolons. Developers often inspect cookies while debugging login sessions, preferences, tracking parameters or API requests.
This page runs in your browser and is designed for quick inspection. Avoid pasting sensitive production session cookies into any online tool unless you fully understand the risk.
Common cookie parser use cases
Turn encoded values such as %7B%22source%22%3A%22google%22%7D into readable text.
Export cookie name-value pairs as JSON for tests, notes or debugging workflows.
Frequently asked questions
Is this cookie parser free?
Yes. This cookie parser is free to use and runs directly in your browser.
Does this tool store my cookies?
No. The current version parses cookies in your browser. Your input is not intentionally saved to a server.
Can this decode URL-encoded cookie values?
Yes. The decoded value column tries to URL-decode each cookie value so encoded JSON-like strings and spaces are easier to read.
Can I parse Set-Cookie headers?
This tool is mainly designed for Cookie request headers. A Set-Cookie response header includes attributes such as Path, Domain, Expires, SameSite and Secure, so it may need a more specialized parser.
Is it safe to paste cookies?
Be careful. Cookies can contain sensitive session values. Do not paste private session cookies into online tools unless you understand what the value is and where the tool runs.