Everything in the catalog

Decodes QR codes and barcodes from an uploaded image or URL.

Mood journal where each day gets a color and a note, building a year-long grid of pixels.

Client-side invoice generator for freelancers and small teams; PDF output, no sign-up, data stays local.

Random word generator for constructed languages: define phonology with weights and generate words.

Lorem Ipsum generator that produces Brazilian Portuguese joke text, with a JS and TS package.

Plain-text chiptune player where you write a sequence in text and hear it play.

Create tier lists, icebergs, axis charts and bingo boards from your own images.

A basic calculator built as an installable offline-capable web app with React and Redux.

Game of Life simulator running with WebAssembly, with pattern drawing and adjustable speed.

Czech income tax calculator for individuals (Czech language).

Open source resume builder with ATS-friendly output and optional AI help, with no watermarks.

Typing test with 3D animation where letters appear as you type, with speed shown at the end.

Create, preview and download PDF invoices in the browser without an account.

Basic ad-free, PWA-ready, open source QR code generator.

Rewrites HTML markup as valid JSX for React components.

Converts HTML into Pug template syntax.

Generates MySQL table definitions from a JSON sample.

Collection of password tools, including strength checking, generation and breach lookups.

Just a simple PDF Invoice Generator made with React, MUI & @react-pdf/renderer.

Lets you walk through worlds drawn in text characters, including a cyberpunk city, a frontier town and the Moon.

DoHabit is a lightweight, local-first habit tracker designed to respect your privacy.

Turns a single image into a full set of favicon formats for your website.

Client web app that finds chords for the notes you select on a piano or fretboard.

Random password generator in plain JavaScript with no cookies or trackers.