UnitConv

Tools

Math & Algebra

Science

Electrical

Developer

Number Base Converter
Convert between binary, octal, decimal, and hexadecimal with real-time bit pattern visualization
ASCII / Unicode Converter
Convert between text and ASCII/Unicode codes with encoding tools
Regex Tester
Test regular expressions with real-time match highlighting and capture group display
Base64 Encoder / Decoder
Encode and decode Base64 with full UTF-8 support
URL Encoder / Decoder
Percent-encode and decode text for safe use in URLs
Bitwise Calculator
AND, OR, XOR, NOT and bit shifts on 32-bit integers, with a live bit-by-bit visualization
JSON Formatter / Validator
Beautify, minify and validate JSON instantly in your browser
Hash Generator
Compute MD5 and SHA hashes from text right in your browser
Random Number Generator
Cryptographically strong random integers and decimals, with unique-draw mode and handy presets
UUID / GUID Generator
Generate cryptographically random UUID v4 / GUID values in bulk and copy them with one click
QR Code Generator
Create QR codes for links, Wi-Fi, contacts, email, phone and SMS, then download as PNG or SVG
JWT Decoder
Paste a JSON Web Token and instantly decode its header and payload — entirely in your browser, nothing is uploaded
CSV ⇄ JSON Converter
Convert CSV to JSON and JSON to CSV in your browser
Password Generator
Create strong, truly random passwords in your browser with adjustable length, character sets and a live strength meter
IP Subnet Calculator
Calculate the network and broadcast address, host range, subnet mask and CIDR for any IPv4 address and prefix - right in your browser

Text

Design & Color

Time & Date

Everyday