About PixelBatch

PixelBatch started with a small annoyance that turned out to be a real problem. I needed to shrink a passport photo to under 240KB for an online form, and every free tool I found wanted me to upload the image to a server I'd never heard of, watch an ad, and then hit a limit after two files. For a photo of my own face, that felt backwards. So I built the thing I actually wanted: a resizer and compressor that does all its work on your own device and never sends your images anywhere.

That's the whole idea. Every tool here — whether you're compressing a photo to 1MB, converting an iPhone HEIC to JPG, or fixing an Amazon listing image — runs entirely in your browser. There's no upload button because there's no upload server. Nothing to sign up for, nothing to pay.

Why everything runs in your browser

Modern browsers can do serious image work on their own, using a technology called WebAssembly that runs compiled code at near-native speed right on your machine. PixelBatch leans on that entirely. When you drop a photo in, your computer's own processor does the resizing and compression — the file never travels across the internet, never lands in a queue, and never sits on someone else's hard drive.

This isn't a privacy policy promise; it's how the tool is built. A server can promise to delete your files and you'd have no way to check. Here there's simply nothing to delete, because your images never left the device in the first place. It's also just faster: no upload wait, no download wait, and no daily cap on how many images you can run through at once.

Who it's for

A lot of people end up here with the same kinds of jobs. E-commerce sellers who keep getting listings bounced for the wrong image size. Photographers and creators processing a whole shoot at once. People filling out visa, passport, or government portal forms with strict, fiddly file-size rules. Developers converting asset libraries to modern formats. And anyone handling images they'd simply rather not hand to a stranger's server — medical scans, IDs, unreleased work.

If you fall into any of those, the tools are grouped by job in the menu above, and there's a blog where I write up the specific requirements behind them — the exact pixel dimensions Amazon wants, why Indian government portals cap uploads at a few dozen kilobytes, and so on.

Who's behind it

I'm Sachit Dsouza, and I build and maintain PixelBatch. It's a small, deliberately focused project: no venture funding, no data harvesting, no upsell to a "pro" tier that unlocks the features you actually need. It stays free because running it costs me almost nothing — your device does the work, not an expensive cloud server — and it stays private because that was the entire reason I made it.

If you've found a bug, want a tool that doesn't exist yet, or just want to tell me something's off, I read everything that comes through the contact page. A fair number of the tools here exist because someone asked.