Guide

Compress JPG photos without uploading them

A phone photo is often 3 to 8 MB. Most of that is detail nobody sees on a screen. Re-saving a JPG at a lower quality setting can cut the file to a fraction of its size, and the difference is hard to spot at normal viewing size.

Why not upload it to a website?

Many online compressors send your photo to a server, compress it there and send it back. For holiday snapshots that may not matter. For ID scans, receipts, client work or pictures of your home it can. This tool compresses inside your browser tab, so the file never leaves your computer.

What quality setting to try

Start at 75. For photos shown on a web page or sent by email, 65 to 80 is a common range. Below 50 you usually start to see blocky areas and smudged edges, especially in skies and skin. Use the previews to judge, since every photo is different.

Make the dimensions smaller too

A 4000 pixel wide photo shown 800 pixels wide on a page carries a lot of unused pixels. Limiting the width to 1600 or 2000 pixels often saves more than lowering quality does, and quality stays higher.

What this tool does to the file

Re-encodes with the mozjpeg encoder, which tends to make smaller JPGs than a basic encoder at the same setting.
Removes metadata such as camera model and GPS location by default. A separate JPG keep option copies those details when you choose it. That is useful before sharing. It also means the embedded colour profile is dropped.
Shows when re-compressing makes a file bigger. Keep your original separately; the download is re-encoded and metadata is removed unless you choose to keep camera details and location for JPG output.

Try it now

The free Image Compressor handles 25 images at a time, with no signup and no upload.

Open the free Image Compressor

The planned $12 one-time offline pack is not yet for sale.