Parse multiple cookie formats into structured JSON. Supports document.cookie strings, Set-Cookie HTTP headers, Netscape HTTP Cookie files, and JSON cookie jars. Auto-detects input format with flat and structured view modes. All processing done locally in your browser.
Features
Supports 4 cookie input formats
Auto-detects input format
Flat and structured view modes
URL decode toggle
Real-time parsing with syntax highlighting
Local browser processing for privacy
How to Use
1Paste cookie string into the input area
2Tool auto-detects format and parses
3Switch view modes to inspect the JSON result
FAQ
What cookie formats are supported?
Four formats are supported: document.cookie (browser JavaScript format), Set-Cookie header (HTTP response header), Netscape cookie file (used by curl/wget), and JSON Cookie Jar (structured JSON array).
Can the tool auto-detect the input format?
Yes. The tool analyzes your input to determine the format automatically. You can also click the format label to override the detection.
What's the difference between Flat and Structured views?
Flat view shows cookies as {key: value} pairs, ideal for simple document.cookie input. Structured view shows the complete cookie object with domain, path, expires, and other attributes.
What happens with duplicate cookie names?
In Flat view, duplicate names overwrite each other. Structured view retains all cookies. Switch to Structured view when duplicates are present.
Is my data uploaded to a server?
No. All parsing is done locally in your browser. Your cookie data never leaves your device.
What does URL Decode do?
Cookie values may be URL-encoded (e.g. %20 for space). URL Decode converts these to readable characters. Toggle it off to see raw encoded values.