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A visual audio equalizer you can adjust in real time. Drag frequency bands to shape the sound, just like a hardware EQ.

by carlosrafaelgn

Test your knowledge of JavaScript's tricky == operator. Fill in the equality table by guessing which comparisons return true — a fun challenge for developers.

by slikts

Interactive visualization of electromagnetic field lines. Place charges and watch the field patterns emerge in real time.

by QC20

Clean, simple calculator for everyday math.

by Launch Arcade

Create and manipulate synthetic sounds using an interactive piano, ADSR envelopes, equalizers, and real-time waveform visualization. A complete web-based audio synthesis studio.

by mdgspace

Design color gradients and export to CSS, SVG, Python, and more. Shareable via URL.

by eltos

Practice addition and number skills with interactive math games for all ages.

by jkanev

Artificial life simulation where simple attraction and repulsion rules between particles produce complex emergent behavior.

by Launch Arcade

A clever puzzle game where every action has an equal and opposite reaction. Move one piece and its mirror moves too.

by sveinn-steinarsson