Bulk Image Compressor
Run the same edits — resize, convert, compress — across a whole folder of images in one place.
A workspace for many images at once
Editing one image is quick; editing forty by hand is a chore that invites mistakes. This brings the common jobs together so you can drop in a batch, set what you want done — a target size, a format, a compression level — and process the lot in a single pass, coming out consistent and ready to use.
It is aimed squarely at the repetitive work: preparing product photos, normalising a gallery, shrinking a pile of screenshots before an upload.
Consistency is the point
The value of doing images as a batch is not just speed, it is uniformity. When every file goes through the same settings, they end up the same size, the same format and the same weight, which is exactly what a tidy gallery or a clean upload needs. Everything runs locally, so a large batch never leaves your device.
How to compress a batch of images
- Drop in every image you want to shrink.
- Set the quality, size and format once for the whole batch.
- Process them all and download the results as a ZIP.
One setting, a whole folder
Preparing a gallery, a product catalogue or a set of holiday photos for the web means doing the same three operations dozens of times. Batch processing applies one set of rules to every file in a single pass, so fifty images take about as long as one and come back consistently sized.
Because it all runs on your own machine, a very large batch is limited only by your device's memory rather than an upload queue — and none of the photos are sent anywhere.
For a fuller walkthrough, see how to reduce image file size.
Frequently asked questions
How many images can I compress at once?
As many as your device's memory allows. Larger batches simply take a little longer, since everything is processed locally.
Can I resize and convert in the same pass?
Yes — set a maximum width and an output format and both are applied to every image alongside the compression.
Are my original files changed?
No. You download new copies and the originals stay exactly as they were.
What can I do to a batch at once?
The common preparation jobs — resizing, converting formats and compressing — applied uniformly across every image you drop in.
Will all the images come out consistent?
Yes. That is the point: one set of settings applied to the whole batch means matching results.
Are my images uploaded?
No. The whole batch is processed in your browser.