Convert files without the hassle. Fast, private, client-side utility software designed for the modern web.
Every day, millions of people search for simple file conversion and image editing utilities online ā only to encounter bloated web pages filled with invasive ads, artificial file-size limits, slow upload queues, and serious privacy risks. Uploading personal photos, contracts, or screenshots to an unknown remote server just to convert a format should not be the norm.
Convert.cool was engineered to solve this fundamentally. By leveraging modern browser capabilities like WebAssembly (WASM), WebGPU, and Web Workers, we move the heavy computational work directly onto your computer or phone.
No waiting for uploads over slow connections. Computation starts immediately in your browser the moment you select your files.
Your images and documents never leave your device. Zero server logs, zero cloud storage, zero security breaches.
Convert single images or batch process hundreds of files at once. You are limited only by your own device's memory and processor.
Convert.cool is a fully progressive web application (PWA). Once cached, all conversion engines work without an internet connection.
Convert.cool supports an extensive spectrum of modern and professional formats:
Convert.cool is built on the shoulders of the open-source community. We gratefully acknowledge and preserve the licensing of the core libraries powering our client-side engines: