Runs locally — nothing is uploaded
Result
Paste Set-Cookie lines or a Cookie header.
How to use
- 1Copy Set-Cookie headers from devtools or curl -I, a Cookie request header, or a cookies.txt / JSON export.
- 2Paste them into the box.
- 3Review the attributes and checks, then export the table.
Set-Cookie response lines, a Cookie request header (a=1; b=2), Netscape cookies.txt from curl or wget, and JSON exports from browser extensions.
Browsers reject such cookies: SameSite=None is accepted only together with Secure.
Name prefixes that browsers enforce: __Secure- requires Secure; __Host- also requires Path=/ and no Domain attribute.
Chrome caps cookie expiry at 400 days, so longer Max-Age or Expires values are shortened.
Related tools
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