A fast, privacy-first image converter that runs in browser
Hey HN I built ImageConverter.dev because I got tired of “free” image converter sites that force uploads, or throttle conversions. So I made a tool that runs 100% client-side — meaning your images never leave your device. It’s built for speed, simplicity, and privacy. What it does Convert images between JPG, PNG, WebP Works offline once loaded (PWA support) How it works It uses the Canvas API and WebAssembly to handle conversions directly in the browser. There’s no upload, no tracking, no server costs, and it’s fast even on mid-range devices. Why I built it I wanted an instant, no-ads,…
In plain words
ImageConverter.dev is a browser-based image conversion tool that converts between JPG, PNG, and WebP formats entirely on the user's device. Built with Canvas API and WebAssembly, it requires no image uploads, server interaction, or tracking. The tool works offline after initial load thanks to progressive web app support and runs efficiently on mid-range devices. It targets users who need quick, private image conversions without relying on traditional web-based converter sites that throttle speeds or collect data.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey HN I built ImageConverter.dev because I got tired of “free” image converter sites that force uploads, or throttle conversions. So I made a tool that runs 100% client-side — meaning your images never leave your device. It’s built for speed, simplicity, and privacy. What it does Convert images between JPG, PNG, WebP Works offline once loaded (PWA support) How it works It uses the Canvas API and WebAssembly to handle conversions directly in the browser. There’s no upload, no tracking, no server costs, and it’s fast even on mid-range devices. Why I built it I wanted an instant, no-ads, privacy-safe way to handle images for my personal projects — something lightweight enough to replace desktop tools. Try it https://imageconverter.dev Would love feedback from the community — especially on: Performance on different browsers/devices Thanks for reading!
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