I built ResizeImage.dev that runs 100% client-side — nothing gets uploaded, and it’s instant.

What it does

Resize, crop, and optimize images directly in your browser

Supports JPG, PNG, WebP

Works offline (PWA-ready)

No tracking, no server, no data collection

How it works

It uses the Canvas API and WebAssembly codecs to process everything locally. All transformations happen in-memory, so no files ever leave your machine.

Why I built it

I needed a simple, no-BS way to resize images for web and social media — something fast, private.

Try it

https://resizeimage.dev

Feedback welcome

I’d love feedback from the HN community

Thanks for reading!