OneImageTool

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BATCH COMPRESSOR

Batch Compress

Drop multiple photos, tune one quality setting, and download everything as a ZIP.

BATCH COMPRESSOR

☞ runs entirely in your browser — nothing is uploaded

Drop images here

or click to browse — up to 5 JPG, PNG or WebP files

bulk optimize

Compress a small batch online

Perfect for shrinking a handful of product shots, blog images, or email attachments. One quality slider applies to every file in the queue.

Each image compresses in sequence in your browser. Download individually or grab a ZIP when the queue finishes.

three steps

How batch compress works

01

Add files

Select up to 5 images on the free plan. Drag a folder of photos or pick files from your device.

02

Set quality

Choose JPG, WebP, or PNG output and adjust the quality slider — all files use the same settings.

03

Download ZIP

Save each compressed file or download one ZIP with every result inside.

quick answers

Batch Compress FAQ

How many images can I compress at once?

The free plan handles up to 5 images per batch. Pro plans with higher limits are planned for a future release.

What formats are supported?

Upload JPG, PNG, or WebP. Export as JPG, WebP, or PNG with a shared quality setting.

Are files uploaded to a server?

No. Each image is compressed with the Canvas API in your browser — nothing leaves your device.

What is in the ZIP download?

One compressed file per queued image, named with -compressed before the extension.

Can I change settings after uploading?

Yes — changing format or quality re-runs compression on the whole queue automatically.

Is batch compress free?

Yes for up to 5 images per batch, with no watermark and no sign-up.

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