Developer apps
Small tools for everyday debugging. Open an app and get to work — no account required.
JSON formatter & validator
Format, minify and validate JSON while preserving original numbers and keys.
Open toolBase64 encoder & decoder
Encode and decode Base64 or Base64URL. Work with UTF-8 text and binary data.
Open toolURL encoder & decoder
Encode and decode URL components, complete URLs and form values.
Open toolJWT encoder & decoder
Decode, sign and verify JSON Web Tokens with local keys.
Open toolUUID generator & inspector
Generate six UUID versions and inspect their structure and encoded time.
Open toolALSO ON WEBHOOKKIT
See what your webhooks send
Create a receiving URL, inspect request bodies and headers privately, and control the HTTP response. Start debugging without an account.