Developer tools
Useful utilities, without the round trip. Work stays in your browser tab.
JSON formatter
Pretty-print valid JSON with two-space indentation.
JSON minifier
Remove optional whitespace from valid JSON.
JSON validator
Check JSON syntax and show the top-level type.
Sort JSON keys
Recursively sort object keys for easier inspection.
JSON to YAML
Serialize JSON as readable YAML.
YAML to JSON
Parse YAML safely with bounded aliases.
Base64 encode
Encode UTF-8 text as Base64.
Base64 decode
Decode strict Base64 to UTF-8 text.
URL encode
Percent-encode a text component.
URL decode
Decode a percent-encoded component.
Query string parser
Inspect repeated URL query parameters as JSON.
JWT payload inspector
Decode a token header and payload without sending it anywhere.
UUID generator
Generate random version 4 UUIDs with Web Crypto.
Secure password generator
Generate passwords using unbiased cryptographic randomness.
SHA-256 text hash
Compute a SHA-256 digest of UTF-8 text.
SHA-512 text hash
Compute a SHA-512 digest of UTF-8 text.
HMAC SHA-256
Authenticate UTF-8 text with a supplied secret key.
Text to hexadecimal
Encode UTF-8 bytes as hexadecimal.
Hexadecimal to text
Decode hexadecimal bytes as UTF-8.
Text to binary
Encode UTF-8 bytes as eight-bit binary groups.
Binary to text
Decode eight-bit groups as UTF-8.
Number base converter
Convert an integer between bases 2 through 36.
Unix timestamp converter
Inspect Unix seconds as an ISO UTC date.
Regex tester
Test a regular expression in a cancellable worker.
URL inspector
Inspect URL components without visiting the address.