Regex Tester
Test regular expressions with live highlighting and groups.
Pretty-print messy JSON, minify it again, or find out exactly which line broke it. Sort keys to compare two documents by eye, explore the structure as a collapsible tree, and see how many objects, arrays and values it contains.
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.
Read a JSON Web Token's claims and check its signature.