Everything in the catalog

Turns hexadecimal byte strings into raw data.

Generates a PGP key pair for a name and email in the browser.

Creates a QR code image from text.

Generates an RSA public and private key pair in PEM, JWK or DER format.

Generates a time-based one-time password from a secret.

Decompresses gzip data.

Compresses data using gzip.

Computes an HMAC using a key and a chosen hash function.

Runs jq queries on JSON input.

Strips whitespace from JSON.

Converts JSON into YAML.

Computes the edit distance between two strings.

Computes and checks Luhn checksums, as used in card numbers.

Tries to detect the encodings and operations that turn encoded input into readable output.

Reads text from an image using OCR.

Decodes a certificate signing request.

Parses a date and time string and reports it in a chosen format and time zone.

Breaks an IPv6 address into its parts and reports its type.

Reads the text out of a QR code image.

Decodes octal, symbolic or ls-style Unix permissions.

Breaks a URI into scheme, host, path, query and fragment.

Splits a user-agent string into browser, engine, OS and device.

Decodes a PEM or DER X.509 certificate into readable fields.

Generates random bytes or numbers from the browser's crypto source.