HTTP Cookie Parser
Parse raw Cookie request header strings into JSON key-value pairs.
HTTP Cookie Parser & Generator
About HTTP Cookie Parser
The HTTP Cookie Header (`Cookie:`) Parser deconstructs raw HTTP request cookie header strings (`name=value; session_id=xyz; auth_token=123`) into structured key-value tables and JSON dictionaries with URL-decoding.
How to Use HTTP Cookie Parser
Step 1
Paste your raw `Cookie:` header string into the input box.
Step 2
Review the parsed cookie table and JSON representation.
Step 3
Click "Copy JSON" or copy individual cookie values.
Practical Use Cases for HTTP Cookie Parser
Debugging Web Server Request Headers & Session Cookies
Parse raw `Cookie:` request headers captured in Charles Proxy, Wireshark, or Chrome DevTools to inspect session tokens.
Testing Node.js & Express Cookie Middleware
Verify cookie parsing logic and decode encoded values before writing custom cookie parsing middleware.
Input & Output Examples
Parsing `Cookie` Header
`session_id=s%3A12345; theme=dark; logged_in=true`
`{\n "session_id": "s:12345",\n "theme": "dark",\n "logged_in": "true"\n}`Key Features & Performance
- ✓Parses standard RFC 6265 `Cookie:` request headers.
- ✓Decodes URL-encoded cookie values automatically.
- ✓Outputs JSON dictionary, key-value table, and single-value copy buttons.
- ✓100% Client-Side memory execution.
- ✓1-Click Copy JSON cookies.
Key Terminology & Definitions
HTTP `Cookie` Header (RFC 6265)
An HTTP request header sent by the client browser containing stored HTTP cookies as semicolon-separated `name=value` pairs.
Percent-Decoded Cookie Value
Decoding special characters (such as `%3A` to `:`) stored inside cookie value strings.