Claudecookie – convert, check, and mint Claude Code credentials from a cookie

Netscape cookies.txt ↔ JSON ↔ Cookie-Editor ↔ Puppeteer ↔ Cookie header

Sample Upload Clear Input Paste cookies here

Choose files Netscape · JSON · Cookie header

Drop cookie files Output Netscape Cookie-Editor Puppeteer More Output appears here

Paste on the left — the result appears here.

Need the same conversion from a script? Netscape, Cookie-Editor, Puppeteer, key-value and Cookie headers are on the public JSON API. API documentation

Check Claude session Verify your session and see plan + usage limits.

Create Claude credentials Turn a valid session into .credentials.json

Public JSON API Convert, check and mint credentials from curl or a script. No API key.

A plain text file with one cookie per line and seven tab-separated fields: domain, include-subdomains flag, path, secure flag, expiry, name and value. It was introduced by Netscape Navigator and is still what curl, wget and yt-dlp read and write today.