Everything in the catalog

Privacy-first PDF editor, merger, splitter, compressor and converter that works client-side.

Converts between CSV and JSON, handling TSV, semicolons and quoted fields, without leaving the browser.

Calculates Italian personal income tax by bracket.

Offline-capable Markdown to PDF converter that makes no network requests.

IBM Granite speech recognition running locally through WebGPU in the browser.

Hashes input with Argon2 using tunable memory, time and parallelism.

Hashes input with bcrypt using configurable rounds.

Converts an IP address between dotted, decimal, hex and octal forms.

Converts between bits, bytes and larger data units.

Counts how many times a search term appears in the input.

Computes CRC checksums using many named CRC variants.

Neutralises URLs so they are not clickable when shared in reports.

Identifies a file's type from its byte signature.

Compares two text inputs and highlights the differences.

Disassembles x86 machine code from hex into assembly.

Measures the Shannon entropy of data to hint at encryption or compression.

Rewrites non-ASCII characters as Unicode escape sequences.

Pulls email addresses out of a block of text.

Finds IPv4 and IPv6 addresses in text.

Finds and lists the URLs in text.

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.