Tools

Transform text into grids of monospaced characters and shaded glyphs

Real-time frequency visualization from mic or test tone - bars, waveform, radial

Translate numbers between binary, hex, decimal, octal, and arbitrary radices

View text as binary, hex, octal, and decimal byte-by-byte with hex dump mode

Visual CSS gradient builder - linear, radial, conic, presets, and live code output

Scientific and RPN calculator with memory, history, trig, log, and constants

Encode and decode messages through classical and modern cryptographic schemes

A wall of timepieces ticking in every timezone - none of them agree on the second

Simulate protanopia, deuteranopia, and tritanopia on colour swatches

Hex, RGB, and HSL colour tools with harmonies, contrast checking, and swatches

Pick a colour, convert between formats, check contrast.

Classic cellular automaton - click to seed cells and watch patterns evolve

Convert coordinates between decimal degrees and degrees/minutes/seconds, both ways.

Line-by-line comparison - spot the single character that breaks the whole script

Watch order dissolve - a visualisation of systems trending inexorably toward chaos

Identify file types by magic bytes - drop a file or browse known signatures

Text-to-glitch renderer with chromatic aberration, scanlines, and image download

Graphing calculator with multiple functions, trace, roots, derivatives, and integrals

Convert between HTML entities, named codes, and raw text with reference table

Generate SHA, MD5, and other digests - fingerprints for any string you feed in

Pretty-print, validate, minify, and traverse deeply nested JSON structures

Inspect keyboard events live - key codes, modifiers, recording, and history

Generate placeholder text with flexible paragraph and word controls

Write in plaintext and preview rendered markup in a split-pane live editor

Digital rain simulation - Katakana, binary, or ASCII glyphs at configurable speed

Generate complete SEO and social media meta tags with live preview cards

Translate between text and Morse code with audio playback and speed control

Animated fractal noise - FBM, turbulence, ridged, six palettes, PNG export

Secure configurable password generator with real-time entropy scoring

Draw pixel art on a canvas grid - paint, erase, fill, undo, and export PNG

Check primality, find factors, and hunt nearby primes

Embed any URL or text into a scannable QR barcode with PNG download

Compose and test regular expressions with real-time match highlighting on sample text

Measure pixels on screen with draggable crosshairs, rulers, and grid overlay

Interactive command-line emulator - type help to begin exploring the system

Transform text between 12 case formats - upper, lower, camel, snake, kebab, and more

Countdown with alarm and stopwatch with lap tracking and export

Convert between Unix epoch seconds and human-readable dates across timezones

Encode and decode URL components and parse query strings

Generate universally unique identifiers - v4 and more, one click per identity

Convert length, mass, temperature, speed, and volume across metric and imperial

Real-time oscilloscope and frequency analyser with mic input and test signal generation

Text analysis - word count, letter frequency, reading time, top words, and more