Computing & Data

Data storage and transfer rates, number bases, text encoding, color codes and color spaces (OKLCH, Lab, P3), CSS units, typography, passwords, image resizing, PPI and typing speed.

12 tools

Data Storage ConverterConvert bytes, kilobytes, megabytes, gigabytes and binary units like MiB and GiB.
Data Transfer Rate ConverterConvert internet and network speeds — Mbps, Gbps, MB/s, MiB/s and more.
Typography ConverterConvert CSS and print type sizes — pixels, points, picas, em and rem.
Password GeneratorGenerate strong random passwords in your browser — nothing is stored or sent anywhere.
Image Resize & Aspect Ratio CalculatorScale an image's width or height while keeping its aspect ratio, and find the ratio (like 16:9) of any size.
Pixels Per Inch (PPI) CalculatorFind a screen's pixel density (PPI) and dot pitch from its resolution and diagonal size.
Typing Speed Calculator (WPM)Work out gross and net words per minute, characters per minute and accuracy from a typing test.
Color Space Converter (OKLCH, Lab, P3)Convert any CSS color between HEX, RGB, HSL, HSV, CMYK, linear sRGB, Display P3, Rec. 2020, XYZ, Lab, LCH, OKLab and OKLCH, with ΔE and gamut checks.
CSS Unit Converter (px, em, rem, vw, pt)Convert CSS lengths between px, em, rem, %, vw, vh, pt, pc, in, cm, mm and Q using your font sizes, viewport and screen DPI.
Number Base ConverterConvert whole numbers between decimal, binary, hexadecimal and octal — exactly, at any size.
Text to Binary (UTF-8) ConverterConvert text to its UTF-8 bytes in binary, and binary back to text.
Color Code ConverterConvert colors between HEX, RGB and HSL with a live preview.