Free Online Converter Tools
Convert images, text, units, and colors instantly in your browser. No sign-up, no server uploads — everything stays on your device.
All Converter Categories
Image Converters
Convert images between formats instantly in your browser. No uploads, no servers — 100% private.
Text Converters
Transform and convert text instantly. Case conversion, encoding, formatting and more.
Unit Converters
Convert between units of measurement. Length, weight, temperature, speed and more.
Color Converters
Convert colors between HEX, RGB, HSL and more. For designers and developers.
Number Base Converters
Convert numbers between binary, decimal, hexadecimal and octal bases instantly.
Data Size Converters
Convert between bytes, kilobytes, megabytes, gigabytes and terabytes instantly.
Audio Converters
Convert audio files between formats instantly. MP3, WAV, OGG, FLAC, M4A and more. No uploads required.
Video Converters
Convert video files between formats in your browser. MP4, WebM, MOV, AVI and more. No uploads required.
Most Popular Tools
JPG to PNG Converter
Convert JPG images to PNG format online for free. Keeps transparency support. No quality loss.
PNG to JPG Converter
Convert PNG images to JPG format online for free. Reduces file size significantly.
UPPERCASE to lowercase
Convert text from UPPERCASE to lowercase instantly online.
lowercase to UPPERCASE
Convert text from lowercase to UPPERCASE instantly online.
Kilometers to Miles
Convert kilometers to miles instantly. Accurate km to mi converter.
Miles to Kilometers
Convert miles to kilometers instantly. Accurate mi to km converter.