Algorithms
Watch sorting, graphs, and trees run step by step.
Native apps built for your device. Private by default. Yours to keep.
Watch sorting, graphs, and trees run step by step.
Open, extract, create, and convert archives.
Generate patterns, gradients, and tilings.
Scan, create, and export barcodes.
Exact answers, real units, and symbolic algebra.
Capture colors, build palettes, and check contrast.
Roll 3D dice with physics and tabletop notation.
See where disk space went, as a treemap or sunburst.
The periodic table, and everything underneath it.
Explore the Mandelbrot set at extraordinary depth.
Turn a goal into a visual map of daily actions.
All of time, with a source behind every claim.
Point your phone. Name the horizon.
Follow RSS and Atom feeds. Read offline.
Mix live sound for sleep and focus.
Explore primes, sequences, and number systems.
100,000+ cited quotations, and who said them.
From saved link to dinner on the table.
Write the pattern, watch it match, understand why.
Write, play, and print musical scores.
Stars, planets, comets, and satellites. Offline.
Live spectrum, spectrogram, and waveform.
Flashcards with spaced repetition.
Hundreds of image formats and editing tools.
Tune, keep time, and train your ear.
Learn touch typing, one key at a time.
Hundreds of formats. One native viewer.
Turn any folder into a web server.