A flexible React component for creating step-by-step tours in your UI. Use it for onboarding, product tours, or tutorials.

Convert numeric PLN amounts into written words in Polish. Ideal for invoices and documents.
 

Remark plugin that allows adding class and ID attributes to Markdown AST via special comment syntax.
 

Convert MIME types to file extensions and file extensions back to MIME types. Fast, lightweight, and written in TypeScript.

Limiter node for Web Audio API, built with AudioWorklet. Cap peak levels of audio in real time with precision and low latency.

Modular GraphQL API server for DJ Truck platform, built with Express, Apollo, and Sequelize ORM. Handles authentication, queries, and DB integration.

Virtual DJ console built in React – mix tracks from YouTube mixer console with waveform preview, sync tools, and in-browser performance controls.

A small Reverse Polish Notation (RPN) calculator written in TypeScript. Evaluates arithmetic expressions using a stack.

Interactive Svelte demo for evaluating Reverse Polish Notation(RPN) expressions using rpn-ts. Includes stack visualisation and expression input.

react-on-scroll-animation (ROSA) is a React library that enables scroll animations for components using Intersection Observer and AOS-style classes.

Demonstration of how to add scroll animations in a React application using the react-on-scroll-animation library.

Interactive virtual modular synthesizer built with React, featuring an audio limiter module. Explore modular synthesis concepts directly in your browser.

Server-side HTTP API for image resizing and format conversion. Upload an image and receive a resized version based on parameters.

Classic Tetris game implemented in pure JavaScript and built around the MVC architecture. Runs entirely in the browser using HTML5 Canvas.