Free & open in your browser

KnowKit

Interactive tools, visualizations and learning resources across image processing and sound synthesis, all running locally in your browser.

🖼️

Image Processing

Live

Segment, cut out and recolor images with classic algorithms like GrabCut, free in your browser.

✂️ Image Cutout Remove a background and download a transparent PNG. 🎨 Image Recolor Change a color while keeping texture and lighting.

🔊

Sound Intuition

Live

Learn the science of sound and train your sound intuition through synthesis techniques, free in your browser.

🎹 Additive Synthesizer Build a waveform from sine partials and play classic instruments. 🗣️ Vowel Synthesizer Shape vowel sounds on an interactive IPA chart.

📐

Mathematics

Coming soon

Interactive visualizations and tools for exploring concepts and theorems.

💻

Computer Science

Coming soon

Algorithm visualizations, data structures and interactive computing demos.

🏛️

History

Coming soon

Timelines, maps and structured reference material for studying the past.

🎨

Art

Coming soon

Guides, references and interactive studies of techniques and works.

🧠

Philosophy

Coming soon

Structured notes, arguments and concept maps for deeper reading.

What is KnowKit?

KnowKit is a growing collection of free, browser-based tools and learning resources. Each discipline is a focused set of interactive pages. No signup, no downloads, and no data leaves your device.

Why interactive?

Interactive tools turn abstract ideas into things you can see and manipulate. Instead of only reading about an algorithm, you can run it on your own input and watch it work.