Everything in the catalog

Creates unique abstract avatars for GitHub and other profiles.

Habit tracker with streak tracking and weekly analytics built with React.

Secret Santa generator that gives each participant a link to reveal who they drew.

Serverless password manager that works in the browser without a client install.

Privacy-first resume builder with six ATS-friendly templates and JSON import and export.

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

Collection of developer tools built with React, including color conversion, hashing and CSS helpers.

Swiss income, wealth and capital tax estimator by municipality and marital status (German).

WebAssembly Gerber viewer designed to handle large PCB files quickly.

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.