Bulk Image Compressor

Drop JPG, PNG or WebP images. We keep the original dimensions and compress them automatically in your browser.

Target file size Optional — choose a maximum size for each image. Original pixel dimensions stay the same.

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Drop your images here

JPG · PNG · WebP

No quality sliders. No account. Just smaller files.

Did something not work?

🔒 Your images stay on your device.

IMAGE GUIDE ✦

Bulk Image Compression: A Practical Guide

Large image folders are one of the easiest ways to make websites, uploads and shared files heavier than they need to be. A bulk compressor lets you reduce many images in one pass instead of opening and exporting every file manually.

This tool keeps the original pixel dimensions and focuses on reducing file size. Each image is processed individually, so a photograph, a transparent graphic and an already-optimized image do not all have to receive the same treatment.

Why compress images in bulk?

Faster website pages and lighter media libraries.
Smaller uploads for email, forms, cloud storage and client delivery.
One workflow for a whole folder, followed by a single ZIP download.

How bulk image compression works

Add JPG, PNG or WebP images. You can select many files at once.
The browser processes the queue one image at a time and looks for a meaningfully smaller result without changing the image dimensions.
Review the before and after sizes, then download all processed files together as one ZIP.

FAQ

Frequently asked questions

Will the compressor resize my images?

No. Compression and resizing are separate jobs here. The compressor keeps the original width and height. Use Image Resizer if you also want to change dimensions.

Why did one image save 70% while another saved only 10%?

Source files differ. Format, previous compression, detail, noise, transparency and color complexity all affect how much space can be removed without an obvious visual penalty.

Do my images get uploaded to a server?

The image processing is designed to run in your browser. Your selected images are processed on your device rather than being sent to an image-processing server.

Does ZIP compression make the images smaller again?

Usually not by much. JPG, PNG and WebP are already compressed formats. The important savings happen before the files are placed into the ZIP.

Which format is best for the web?

There is no single winner for every image. JPG is widely compatible for photos, PNG is useful for lossless graphics and transparency, and WebP often offers smaller web files. The best choice depends on the image and where it will be used.