About

A free image resizer and converter that does the work in your browser instead of on someone else's server.

Why it exists

We needed to prep product photos in bulk and found the free options genuinely bad — file caps, watermarks, adverts stacked three deep, and every one of them wanting the images uploaded first. So we built an internal tool. This is that tool, cleaned up and made public.

How it works

Your browser can already decode, resize and re-encode images. This page just asks it to. Your files are read from disk, processed in memory and handed straight back to you. There is no server in the middle, which is why there is no upload, no account, no file limit and no cost.

The one exception is HEIC. Browsers cannot read it, so a decoder is downloaded the first time you drop a HEIC file — it still runs on your machine, and your photos still never leave it.

What it does not do yet

Being straight about the gaps:

• No multi-page image-to-PDF builder. Resize here, then use your system Print to PDF.
• No background removal or AI upscaling.
• No cropping or editing UI — sizes and formats only.
• Very large batches are limited by your device memory, not by us.

Who built it

Quantum Armadillo, LLC. We also build CADdillo, a free DWG to PDF converter and browser CAD editor, on the same principle: the file should stay with the person who owns it.

Found a problem?

An image that converts badly is the most useful thing you can report. Email hello@imageinseconds.com.