FileCrisp
Image Tools6 min read

Batch Compress Images
Free — All Formats at Once.

Compressing images one by one is slow. Drop an entire folder into FileCrisp and compress every PNG, JPEG, and WebP in a single click — then download them all as a ZIP.

4 files processingAll done ✓
hero.png4.2 MB180 KB−96%
product.jpg2.1 MB95 KB−95%
banner.webp1.8 MB78 KB−96%
thumb.png640 KB28 KB−96%
Total saved: 7.9 MB → 381 KB

0%

Average reduction per image

Across PNG, JPEG, and WebP files

0

Server uploads

All processing happens in your browser

0

Click to compress all

One quality setting applies to every file

Pro tip

Speed tip: Convert all output to WebP at the same time as compressing. You save 25–34% extra versus keeping the original format.

How to Batch Compress Images in 4 Steps

No account, no install. Works on any device in any modern browser.

1

Drop all your images at once

Select multiple files or drag an entire folder onto FileCrisp. You can mix PNG, JPEG, and WebP in the same batch — the tool handles each format automatically.

No file count limit
2

Set quality once for all files

Adjust the quality slider — 80% is the sweet spot for most web images. This setting applies to every file in the batch equally. You can also choose to convert all to WebP for maximum savings.

80% quality = best size-to-quality ratio
3

Compress all in one click

Hit Compress. FileCrisp processes each file in your browser using WebAssembly. Files are processed in parallel — a batch of 50 images typically finishes in under 30 seconds.

Parallel processing — no queue
4

Download as ZIP or individually

Once done, download all compressed images as a single ZIP file. The filenames and folder structure are preserved. Or download individual files if you only need a few.

ZIP preserves folder structure

Compress your entire image library right now

Free, private, instant. No file count limit, no upload, no account.

Free forever
No uploads · 100% private
Batch Compress Free

FAQs

Frequently Asked Questions

Everything you need to know — answered plainly.

Compress Images in Bulk — Free

Drop your whole folder, compress everything in one click, download as ZIP.

No account needed
Files stay on your device
Instant results