v1.87.0

A SMALL CORNER OF THE INTERNET, FOR CURIOSITY

Useful things.
Playful ideas.
All in one place.

A growing collection of tools, experiments, and little websites that make you want to click around. Pick something. See where it takes you.

Find your next rabbit hole ↘

THE COLLECTION

Choose your curiosity.

18 applications & counting
Music & creativityv1.3.0

Beat Lab

Build a complete song. Draw notes in a piano roll, layer eight instruments, arrange clips, shape sounds and automation, import MIDI, and save projects in your personal library.

Open tool
Science & electronicsv3.1.0

Circuit Garden

Build Arduino circuits with manual right-angle wires, preset colors, component rotation and copy/paste, native C++, instruments and pinned libraries.

Open tool
Art & creativityv1.5.0

Color Playground

Find your next color crush. Generate palettes, extract colors from an image, and preview combinations. Save favorites and export CSS or PNG.

Open tool
Everyday essentialsv1.2.0

Everyday Toolkit

A little help for everyday things. Named timers, focus cycles, stopwatch, unit conversions, percentages, dates, bill splitting, recipe scaling and a time-zone planner.

Open tool
Science & motionv2.0.0

Flight Lab

Curve a ball. Tumble a tractor. Explore 3D flight, bouncing, gusts, force graphs, target challenges, automatic experiments, and saved discoveries.

Open tool
Science & discoveryv1.1.0

Float or Sink Lab

Explore density, displacement and floating steel hulls. Try a cargo challenge with metric or US/imperial mass, volume and force measurements.

Open tool
Science & flowv2.0.0

Fluid Lab

One lab for Flow, 3D and Waves. Stir dye and smoke, shape currents around objects, build wave experiments with sources and barriers, and save or share your discoveries.

Open tool
Art & creativityv1.2.0

Fractal Explorer

Find a little infinity. Save favorite discoveries, record zoom videos, link Mandelbrot and Julia views, and export HD or 4K wallpapers.

Open tool
Science & gravityv1.4.0

Gravity Playground

Your own little universe. Launch planets, build orbits, change gravity, and watch worlds collide. Save your creations and come back later.

Open tool
Science & heatv2.0.0

Heat Lab

Four experiments, one Heat Lab. Cool drinks, follow temperature clues, design winter gloves and explore coastal climates—with metric or US/imperial measurements.

Open tool
Science & opticsv1.0.0

Light Lab

Follow a little light. Arrange mirrors, lenses, prisms and glass; explore reflection, rainbows, and real or virtual images.

Open tool
Science & spacev1.5.0

Orbit Explorer

Explore dated planetary and moon positions. Change your perspective, drag a planet through time, and compare worlds.

Open tool
Art & creativityv1.5.0

Pattern Studio

Find your pattern. Make kaleidoscopes, draw reflected lines, trace spirographs, and create geometric art. Export your creations as PNG or SVG.

Open tool
Puzzles & playv4.0.1

Puzzle Room

Ten ways to give your mind room to play. Explore 1,000 ladder puzzles, practice techniques, and optionally sync progress and bookmarks across devices.

Open tool
Places & explorationv1.0.0

Resort Explorer

Choose a mountain. Explore its trails, ride lifts, and try skiing or snowboarding in 3D. Start with Okemo, Vermont—more resorts are coming.

Choose a resort
Science & spacev1.3.0

Sky Explorer

Follow the Milky Way, find galaxies and nebulae, and zoom into dated Moon and planet views. Explore your sky and share what you find.

Open tool
Science & soundv2.1.1

Waveform Studio

Build a wave. Mix a signal. See—and hear—how simple pieces become something extraordinary.

Open tool
Science & airflowv1.0.0

Wind Tunnel

Design a shape. Send it into the wind. Explore airflow, pressure, and swirling wakes in an interactive 2D wind tunnel.

Open tool

Showing 16 applications

ROOM TO GROW

One place. Endless possibilities.

Puzzles, Fluid Lab, Orbit Explorer, and Waveform Studio are just the beginning. New tools and fun websites will land right here.

GO A LITTLE FURTHER

One small experiment can open a new idea.

Find a starting point for every tool: useful questions, things to try, and a little context for what you see.

Explore all the guides ↗

Changelog

POPFUN v1.87.0 · NOVEMBER 2, 2026

POPFUN v1.86.0 · NOVEMBER 1, 2026

POPFUN v1.85.0 · NOVEMBER 1, 2026

POPFUN v1.84.0 · NOVEMBER 1, 2026

POPFUN v1.83.0 · NOVEMBER 1, 2026

POPFUN v1.82.0 · NOVEMBER 1, 2026

POPFUN v1.81.0 · NOVEMBER 1, 2026

POPFUN v1.80.0 · NOVEMBER 1, 2026

POPFUN v1.79.0 · NOVEMBER 1, 2026

POPFUN v1.78.1 · NOVEMBER 1, 2026

POPFUN v1.78.0 · NOVEMBER 1, 2026

POPFUN v1.77.0 · NOVEMBER 1, 2026

POPFUN v1.76.0 · NOVEMBER 1, 2026

POPFUN v1.75.0 · NOVEMBER 1, 2026

POPFUN v1.74.0 · NOVEMBER 1, 2026

POPFUN v1.73.0 · NOVEMBER 1, 2026

POPFUN v1.72.0 · NOVEMBER 1, 2026

POPFUN v1.71.0 · NOVEMBER 1, 2026

POPFUN v1.70.0 · NOVEMBER 1, 2026

POPFUN v1.69.0 · NOVEMBER 1, 2026

POPFUN v1.68.0 · NOVEMBER 1, 2026

POPFUN v1.67.0 · NOVEMBER 1, 2026

POPFUN v1.65.0 · NOVEMBER 1, 2026

POPFUN v1.64.0 · NOVEMBER 1, 2026

POPFUN v1.62.0 · NOVEMBER 1, 2026

POPFUN v1.62.0 · NOVEMBER 1, 2026

POPFUN v1.61.0 · NOVEMBER 1, 2026

POPFUN v1.60.0 · NOVEMBER 1, 2026

POPFUN v1.59.0 · NOVEMBER 1, 2026

POPFUN v1.58.0 · NOVEMBER 1, 2026

POPFUN v1.57.0 · NOVEMBER 1, 2026

POPFUN v1.56.0 · NOVEMBER 1, 2026

POPFUN v1.55.0 · NOVEMBER 1, 2026

POPFUN v1.53.0 · NOVEMBER 1, 2026

POPFUN v1.51.0 · NOVEMBER 1, 2026

POPFUN v1.50.0 · NOVEMBER 1, 2026

POPFUN v1.49.0 · NOVEMBER 1, 2026

POPFUN v1.50.0 · NOVEMBER 1, 2026

POPFUN v1.48.0 · NOVEMBER 1, 2026

POPFUN v1.47.0 · NOVEMBER 1, 2026

POPFUN v1.46.0 · NOVEMBER 1, 2026

POPFUN v1.45.0 · NOVEMBER 1, 2026

POPFUN v1.44.0 · NOVEMBER 1, 2026

POPFUN v1.43.0 · NOVEMBER 1, 2026

POPFUN v1.40.0 · NOVEMBER 1, 2026

POPFUN v1.42.0 · NOVEMBER 1, 2026

POPFUN v1.41.0 · NOVEMBER 1, 2026

POPFUN v1.39.0 · NOVEMBER 1, 2026

POPFUN v1.40.0 · NOVEMBER 1, 2026

POPFUN v1.38.0 · NOVEMBER 1, 2026

POPFUN v1.40.0 · NOVEMBER 1, 2026

POPFUN v1.37.0 · NOVEMBER 1, 2026

POPFUN v1.36.0 · NOVEMBER 1, 2026

POPFUN v1.35.0 · NOVEMBER 1, 2026

POPFUN v1.34.0 · NOVEMBER 1, 2026

POPFUN v1.33.0 · NOVEMBER 1, 2026

POPFUN v1.32.0 · NOVEMBER 1, 2026

POPFUN v1.31.0 · NOVEMBER 1, 2026

POPFUN v1.30.0 · NOVEMBER 1, 2026

POPFUN v1.29.0 · NOVEMBER 1, 2026

POPFUN v1.28.0 · NOVEMBER 1, 2026

POPFUN v1.27.0 · NOVEMBER 1, 2026

POPFUN v1.26.0 · NOVEMBER 1, 2026

POPFUN v1.25.0 · NOVEMBER 1, 2026

POPFUN v1.24.0 · NOVEMBER 1, 2026

POPFUN v1.23.0 · NOVEMBER 1, 2026

POPFUN v1.22.0 · NOVEMBER 1, 2026

POPFUN v1.21.0 · NOVEMBER 1, 2026

POPFUN v1.20.0 · NOVEMBER 1, 2026

POPFUN v1.19.0 · NOVEMBER 1, 2026

POPFUN v1.18.0 · NOVEMBER 1, 2026

POPFUN v1.17.0 · NOVEMBER 1, 2026

POPFUN v1.16.0 · NOVEMBER 1, 2026

POPFUN v1.15.0 · NOVEMBER 1, 2026

POPFUN v1.14.0 · NOVEMBER 1, 2026

POPFUN v1.13.0 · NOVEMBER 1, 2026

POPFUN v1.12.0 · NOVEMBER 1, 2026

POPFUN v1.11.0 · NOVEMBER 1, 2026

POPFUN v1.10.0 · NOVEMBER 1, 2026

POPFUN v1.9.0 · NOVEMBER 1, 2026

POPFUN v1.8.0 · NOVEMBER 1, 2026

POPFUN v1.7.0 · NOVEMBER 1, 2026

POPFUN v1.6.0 · NOVEMBER 1, 2026

POPFUN v1.5.0 · NOVEMBER 1, 2026

POPFUN v1.4.0 · NOVEMBER 1, 2026

POPFUN v1.3.0 · NOVEMBER 1, 2026

POPFUN v1.2.0 · NOVEMBER 1, 2026

POPFUN v1.1.0 · NOVEMBER 1, 2026

POPFUN v1.0.0 · NOVEMBER 1, 2026

Waveform Studio has its own version and changelog inside the application.