What do I get back from Bulk Image Compression?

The result is JPG, JPEG, PNG, WEBP, offered as a download the moment the work finishes. Multiple results come back together rather than as fifty separate save dialogs.

How big a file can I use?

Up to 100 MB per file and 50 files per batch. There is no server queue behind that limit; the practical ceiling is your browser's memory, so split unusually large documents into two runs.

Is it safe to use for a document with personal details in it?

That is the design goal: the document stays on your device, so a statement, a contract or an ID photo is never transmitted for processing. Nothing here needs an internet connection once the page has loaded, apart from engines that fetch their own model data.

Will it work on a phone?

Yes. The layout adapts to a small screen and the processing runs in the mobile browser, so a photo or a downloaded document can be handled on the device it arrived on.

Bulk Image Compression

Compress many images at once.

Drag & drop images to compress

or click to browse — .jpg, .jpeg, .png, .webp, .gif, .bmp, .svg, .tiff, .tif, .heic, .avif, .ico · up to 50 files

Add at least one image.

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About Bulk Image Compression

Bulk Image Compression is here for getting image file size down: compress many images at once. It takes JPG, JPEG, PNG and 9 more and produces JPG, JPEG, PNG, WEBP. Files up to 100 MB each, 50 at a time, and the work happens on your own machine rather than on a server.

The slow route to getting image file size down is installing something, making an account and uploading the file; this is the fast route.

How to use Bulk Image Compression in 3 steps

Add one image or a batch of up to 50; mixed formats are accepted.
Set the compression level, or the custom quality and max-dimension sliders.
Press Compress image and download the result in whichever of JPG, JPEG, PNG, WEBP suits you.

What you get with Bulk Image Compression

Accepts JPG, JPEG, PNG and 9 more in one go
Output in JPG, JPEG, PNG, WEBP
Batch up to 50 files, returned together
Runs in your browser — the file is never uploaded
Free to use, with no signup and no account
No watermark or logo added to your output
Works on desktop and mobile, no install

Bulk Image Compression: questions

What do I get back from Bulk Image Compression?: The result is JPG, JPEG, PNG, WEBP, offered as a download the moment the work finishes. Multiple results come back together rather than as fifty separate save dialogs.
How big a file can I use?: Up to 100 MB per file and 50 files per batch. There is no server queue behind that limit; the practical ceiling is your browser's memory, so split unusually large documents into two runs.
Is it safe to use for a document with personal details in it?: That is the design goal: the document stays on your device, so a statement, a contract or an ID photo is never transmitted for processing. Nothing here needs an internet connection once the page has loaded, apart from engines that fetch their own model data.
Will it work on a phone?: Yes. The layout adapts to a small screen and the processing runs in the mobile browser, so a photo or a downloaded document can be handled on the device it arrived on.