How to compress multiple images at once

Compressing images one by one is slow and inconsistent — you end up nudging the quality slider a little differently on each file, and a set of photos that should match ends up all over the place. Doing the whole set together fixes both problems: one quality setting for the batch, and a single download at the end.

Because it all runs on your device, there's no upload queue to wait through either. A folder of thirty photos compresses about as easily as one.

The compressor is built for batches from the start:

1. Open the compressor and drop in all your images at once — you can select a whole folder's worth.
2. Set the quality once. It applies across every image in the batch, so the results stay consistent.
3. Let them all compress on your device, then download the batch as a single ZIP rather than saving each file by hand.

There's no account, no watermark and no cap on how many you can do. You can disconnect from the internet after the page loads and the whole batch still compresses — the plainest proof nothing is uploaded.

Batches are rarely all the same type. You can drop JPGs, PNGs and WebP files in together, and each is compressed with the right approach for its format. If you'd rather tune one format specifically, there are dedicated tools too — the JPG compressor, PNG compressor and WebP compressor — and the same batch handling applies. You can also convert a batch to a single format first if you want everything uniform.

Bulk tools are exactly where privacy usually slips: many sites upload every file to a server to process it. Here, the batch is processed right on your device, so a folder of personal photos or client work never leaves your computer, and EXIF and GPS metadata are stripped from each exported image. For the quality side of the decision, see how to compress images without losing quality, or reduce image file size for email.