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How-to GuideHit an exact file size≈ 1 minute · no install

How to Batch Compress Images (Many at Once)

When you have 30 product shots or a folder of blog images, doing them one by one is misery. A bulk compressor applies the same target to the whole set at once and hands back a single archive. Here is how to batch it right.

The short version

Follow the steps below with the free Bulk Image Compressor tool — it runs entirely in your browser, needs no upload, account or watermark, and finishes in about a minute.

Step by step

1
Load the whole batch

Drag up to 30 images in one go; everything processes on your device.

2
Set one shared target

Pick a quality or KB target that suits all of them (e.g. 200 KB for web).

3
Convert all

One press compresses the entire queue in seconds.

4
Download the ZIP

Get every result in one archive and unzip where you need them.

Open the Bulk Image Compressor toolFree · unlimited · runs in your browser

Pro tips & common mistakes

  • Keep batches visually similar (all photos, or all screenshots) so one setting fits them well.
  • Rename before batching so the ZIP comes out with tidy, predictable filenames.
  • Over 30 images? Run a second batch back-to-back — there is no daily limit.

Related guides

How to Shrink a Photo for EmailHow-to guideHow to Reduce Image Size to 200 KBHow-to guideHow to Compress Images for a Website (Faster Pages)How-to guide

Frequently asked questions

How many images can I compress at once?
Up to 30 per batch, unlimited batches, free and private.
Does bulk keep filenames?
Yes, outputs mirror your input names inside the ZIP.
Will batch hurt quality?
Each file uses the same tuned settings you would use solo — quality is controlled, not sacrificed.