How to Bulk Compress Multiple Photos to a Target Size (ZIP Download)
The one-at-a-time problem
Compressing a single photo is easy. Compressing 30 event photos, ID scans for a whole team, or a batch of product images — one at a time, in a tool that makes you upload, wait, download, repeat — is genuinely painful.
Bulk compression, explained
Bulk compression tools let you upload multiple images at once, apply the same target size or settings to all of them, and download everything together — usually as a single ZIP file — instead of saving each photo individually.
PhotoToolKit supports this directly: drop in multiple JPG, PNG, or WebP images, pick your target size, and get back one ZIP containing every compressed photo.
Who this is useful for
- Students/job applicants submitting multiple ID or document photos across different forms with different size limits
- HR teams processing employee ID photos in bulk
- Photographers and small businesses preparing images for a website or catalog where every file needs to stay under a certain size
- Anyone clearing storage by shrinking a folder of old photos without redoing each one manually
How to do it
- Open PhotoToolKit and select the bulk/multiple-image option.
- Drop in all the photos you want compressed.
- Choose a single target size that applies to the whole batch.
- Download the ZIP and extract it — every photo is compressed and ready to use.
FAQ
Can I set different target sizes for different photos in one batch?
Bulk mode applies one target size across the batch; for photos needing different limits, run them as separate batches.
Is there a limit to how many photos I can compress at once?
This depends on your browser’s available memory rather than a fixed cap — very large batches may take longer to process since everything runs on your device.
Open PhotoToolKit →