ImageConverterTool
Convert images in your browser
What it does
Most image converters work the same way: upload your file, wait for it to travel to a server, download the result. You have no idea what happens to your files in between. ImageConverter works differently. Everything runs locally in your browser using the Canvas API and WebAssembly. No upload. No server. No wondering. It's also faster. Conversion starts the moment you drop a file. No server queue, no waiting on bandwidth. Built by one developer. Free, no signup required.
Does the same job
all alternatives →- AFA fast, privacy-first image converter that runs in browserOct 2025 · imageconverter.dev · ▲48
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,…

- BCBulk convert images online without sending to server2022 · webutils.app · ▲188
There are lots of solutions already, but most solutions have too many ads or they process on server(privacy concern). Webutils convert all images on client using webassembly.

- IBI built image converters site that run in the browser2024 · dynapik.com · ▲19
Hello HN, I've used a lot of image converter websites to run for my daily jobs, but they required uploading my assets on their servers which I didn't like. I decided to build it myself and publish as a website for everyone to use at no cost (since the conversion happened on your browsers) I'd live to hear your thoughts about it. Cheers,
- ImageConvert.proMay 2026 · imageconvert.pro · ▲2
Your images never leave your browser — convert & compress
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