Everything in the catalog

Web-based MIDI editor and synthesizer where you write and play sequences.

Runs OCaml in a browser toplevel with no installation.

Web remake of the ArcoMage fantasy card game, a tower-building duel against the computer.

Programmable sequencer for chiptunes that runs in the browser.

Turns an ordinary website link into the matching university Web VPN address so campus-only resources can be opened.

Online tool for sketching and sharing instrumental music, an extended fork of BeepBox with more instruments.

Visual editor for composing Discord webhook messages and embeds and sending them to a server webhook.

Web front end for generating Stable Diffusion images on the AI Horde volunteer GPU network.

Translates bash shell scripts into Windows batch files.

Klondike solitaire built in React and playable in the browser.

Draw property-graph diagrams with labelled nodes and relationships for docs or slides.

Web notepad that encrypts notes automatically and requires no registration.

Free, ad-free crossword constructor and solver community with a daily mini puzzle and shareable grids.

Minesweeper player with a solver and analyser that shows safe cells and probabilities.

Picks poker chip denominations for a cash game from your chip supply and the buy-in.

Play the 4,500-year-old Royal Game of Ur online against a bot or a friend.

Checks colour combinations against WCAG success criteria with a live preview.

Turns an HTML invoice template into an editable invoice you can fill in and print.

Converts files between formats inside your browser using WebAssembly and ffmpeg, so nothing is uploaded.

Converts a docker-compose file back into docker run commands.

ZX Spectrum emulator in the browser that loads tape and snapshot files you provide.

Create and solve sudoku and many other pencil puzzle types, with sharing by link and multiple colors.

Generates favicons and app icons from an image, with open source code.

Browser drum machine and beat sequencer with eight voices, sixteen steps and chainable patterns.