Browse Apps

Study 3,600+ chess openings on an interactive board. Search by name or ECO code, step through moves, bookmark favorites, and track your study progress.

Interactive periodic table of 118 elements. Color-coded by category, filterable by phase and type. Click any element for detailed properties: atomic mass, density, melting/boiling points, electron configuration, and more.

Create music from math — write tiny formulas that generate audio in real time. A bytebeat player for composing algorithmic music with just a few characters of code.

Turn JavaScript code into draggable bookmarklets instantly. Paste your code, get a ready-to-use bookmarklet link you can drag to your browser toolbar.

Generate custom QR codes with logos, colors, and UTM tracking. Create branded QR codes for links, WiFi, contacts, and more.

A visual recipe book for 2D graphics programming. Browse interactive examples of shapes, curves, transforms, and effects with live code.

A visual editor for creating and manipulating SVG paths. Click to add points, drag to adjust curves, and export clean SVG code.

Encode and decode Base64 text instantly in the browser.

Edit, format, validate, and explore JSON with tree and code views.

Convert text to Morse code and back. Listen to the encoded message with audio playback.

Write HTML, CSS, and JavaScript with instant live preview. A lightweight CodePen-style editor in your browser.

A live GLSL fragment shader editor with instant preview. Write WebGL shaders and see the results in real-time on a canvas.

A tiny, elegant code editor for the browser with syntax highlighting. Write and edit code in a clean, minimal interface.

A powerful QR code toolkit — analyze, decode, and recover damaged QR codes step by step. See the internal structure, edit modules, and extract data from partial codes.