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Bulk Image Compressor

Bulk-compress JPG, PNG and WebP images with a quality slider — privately, right in your browser. Drop a whole batch at once.

Compress an image online free to reduce its file size and make a picture smaller without losing quality. Drop in a batch of JPG, PNG or WebP files, slide the quality to balance size against sharpness, and see the KB saving instantly. It works as a photo compressor for shrinking images for email, web pages or uploads. Everything runs in your browser, so nothing is uploaded.

Read the guide: How to Compress Images Without Losing Quality

Drop images here

PNG, JPG, WebP, AVIF or GIF — processed privately on your device

Lower quality = smaller file. PNG is optimised losslessly (quality has no effect). Already-optimised images are kept as-is — we never make a file bigger. For big savings on photos, try the Converter (WebP/AVIF).

How it works

  1. 1

    Add images

    Drop in one or many JPG, PNG or WebP files.

  2. 2

    Set quality

    Slide to balance file size against visual quality. See the saving instantly.

  3. 3

    Download

    Save one image or the whole batch as a zip. Files are never uploaded — everything happens locally.

Instant & 100% private — nothing is uploaded

Your images are processed instantly on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and no copies kept anywhere.

Frequently asked questions

Are my images uploaded to a server?
No. Compression happens entirely on your own device. Your images never leave your computer, so there are no upload waits and no copies kept anywhere.
Which formats can I compress?
JPG, PNG, WebP and AVIF. Lossy formats (JPG, WebP, AVIF) use the quality slider; PNG is compressed losslessly.
Is there a file size or count limit?
No artificial limits from us. Because processing is local, the practical limit is your device’s memory.
How much smaller will my files get?
It depends on the image and quality setting, but JPG/WebP at quality 75 typically cut size by 50–80% with little visible difference.

More tools

Bulk Image ResizerBulk resize by pixels or percent with one-click presets.Image CropperCrop to any size or a fixed aspect ratio, with live zoom.Bulk Image ConverterBulk convert to WebP, AVIF, JPG or PNG with quality control.Bulk Background RemoverBulk-erase backgrounds with AI that runs on your device.Bulk GIF Background RemoverMake a GIF background transparent (or recolor it) — many GIFs at once.Auto Face BlurAuto-detect and blur every face in a photo to protect privacy.

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