Shrinkrs / Compress images
Bulk image compressor
Compress a whole batch of photos with one quality setting and download the lot as a ZIP. Up to 100 images at a time, processed on your own device.
No image handy?
For PNG, quality sets how many colours are kept. 100 keeps them all and 60 to 80 suits most graphics. Photos may need a higher setting to avoid banding.
How to use the Bulk Image Compressor tool
- STEP 1
Select many files
In the file picker press Ctrl+A (Cmd+A on a Mac) to select a whole folder, or drag the files in.
- STEP 2
Set one rule for the batch
Choose a quality or a target size and an optional max width. It applies to every image.
- STEP 3
Download as ZIP
Files are named with a -compressed suffix so they never overwrite your originals.
Built for batches
Product photos, event galleries, website image folders and phone backups all share the same need: one rule applied to many files. Set the quality and optional max width once, and every image gets the same treatment. The summary at the top shows the total before and after size for the whole batch.
Changing a setting after the files are loaded re-runs the batch automatically, so you can try 70, then 60, and compare the totals without adding the files again.
How long does a big batch take?
Because the work happens on your device, speed depends on your computer or phone. A few dozen typical phone photos take well under a minute on a modern laptop. Very large images, such as 40-megapixel files, take a second or two each. Keep the tab open until the summary stops changing.
If a batch of very large files makes your browser slow, run it in two or three smaller groups. Nothing is lost between runs, since your originals are never modified.
Questions people ask
How many images can I compress at once?
Up to 100 per batch. For more, process them in groups and download a ZIP for each.
Can I choose different settings for different images?
One setting applies to the whole batch. If a few images need a different quality, remove them with the x button and run them separately.
Will the ZIP keep my file names?
Yes, with -compressed added before the extension. If two files end up with the same name, a number is added.
Are my images uploaded to compress them?
No. There is no server involved in the compression. The images stay in your browser until you save them.
Which formats are supported?
JPG, PNG, WebP and AVIF as input. Output can stay in the original format, or become WebP or JPEG.