NOPPAW

Bulk Image Compressor

One photo at a time is fine until you have a whole folder: a product shoot, a scanned archive, a week of screenshots. This tool compresses up to 30 images in one pass with the same quality and format settings, shows the before-and-after size of every file, and packs the results into a single ZIP download.

Drop images here or

Accepted: JPG, PNG, WebP · Up to 30 files · Max 25 MB each · Processed locally in your browser

No files selected.

No images in the batch yet. Add some above.

The ZIP is built in your browser only when you ask for it, and contains exactly the processed files listed above.

How to use Bulk Image Compressor

  1. Choose or drop up to 30 JPEG, PNG, or WebP images.
  2. Pick one output format and quality level for the whole batch.
  3. Process the batch locally and review each file's before-and-after sizes.
  4. Download files individually, or grab everything at once as a ZIP.

Supported behavior

  • Every file is reported with its real before-and-after sizes; if a file grows, its row says so.
  • The ZIP is built in your browser only when you ask for it — nothing is uploaded or stored.
  • Batch settings apply to all files equally, which keeps a photo set visually consistent.

Best for

  • A product-photo set that needs one consistent export setting.
  • A folder of screenshots headed for a report or wiki.
  • Scanned document pages that need a uniform size cut.

Limits

  • Up to 30 files per batch, each under 25 MB — very large batches are limited by your device's memory.
  • One format and quality for the whole batch; mixed per-file settings need the single-image compressor.
  • PNG inputs exported as JPG lose transparency, as with any JPEG export.

Privacy notes

  • Selected files stay on your device during processing; nothing is uploaded to a server.
  • Object URLs are revoked when previews or results are replaced.

Related tools

Compress JPG, PNG, WebP Image Compressor Reduce image file size with local browser processing. Specific Size JPG, WebP Compress Image to 100 KB Fit a photo into a 100 KB portal limit, dimensions protected first. Resize JPG, PNG, WebP Image Resizer Resize images with pixel, percentage, and preset controls.

Related guides

Guide How to Reduce Image Size Without Losing Too Much Quality A practical guide to balancing image quality and file size. Updated June 30, 2026 Guide Why WebP Images Are Usually Smaller An explanation of why WebP often reduces image weight. Updated June 30, 2026

Bulk Image Compressor FAQ

How many images can I compress at once?

Up to 30 per batch. If you select more, the first 30 are queued and the status line tells you, so you can run the rest as a second batch.

What is inside the ZIP file?

Exactly the compressed results, one file per input, named after the originals with the tool name appended. No extra files, no folder structure.

Do all files have to be the same format?

No — the batch can mix JPG, PNG, and WebP inputs. The output format you pick applies to every result.