JSON Formatter
Format, minify and validate JSON with a browsable tree.
Write a regular expression and watch it match against your text in real time, with every capture group broken out and named groups labelled. Preview a replacement before you run it, and keep the syntax reference open beside you.
No pattern yet
Write a pattern above to start matching.
Format, minify and validate JSON with a browsable tree.
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.