JSON Formatter
Format, minify and validate JSON with a browsable tree.
Search the Open Cookie Database by cookie name or domain to find out what a cookie stores, who controls it, how long it lives and which category it belongs to.
Look up any cookie
Search by name to find out what a cookie does, or by domain to see everything a site sets.
Format, minify and validate JSON with a browsable tree.
Test regular expressions with live highlighting and groups.
Convert CSV to JSON and back, with a live preview table.
Encode and decode Base64 text, files and data URLs.