Convert a Netscape HTTP cookie file exported by cURL, wget or another compatible tool into JSON that can be reviewed or imported with a browser extension such as Cookie-Editor. The converter runs locally in your browser; the selected file is not uploaded to WikiZell.
How to convert a Netscape cookie file to JSON
- Select a Netscape-format cookie text file with the Choose File control.
- Select Convert to JSON to parse the file in your browser.
- Review the generated JSON before using it anywhere else.
- Copy the result or select Download JSON to save it with the suggested filename.
What the converter preserves
The output keeps each cookie’s domain, host-only behavior, path, secure flag, HttpOnly flag, expiration timestamp, name and value. Lines that do not contain a valid seven-column Netscape cookie record are ignored.
Privacy and security
Cookie files can contain active session credentials. Only convert cookies that belong to you, never publish or share the generated JSON, and remove the file when you no longer need it. Importing another person’s cookies or cookies from an untrusted source can compromise accounts and violate a service’s rules.
This tool uses your browser’s FileReader and download features, so conversion happens on your device without sending the selected cookie file to the server.
Supported input
The expected input is the tab-separated Netscape HTTP cookie format commonly produced by cURL’s cookie-jar option and compatible utilities. Other cookie exports may use a different JSON schema and should be converted with a tool designed for that format.