Free Tool

Image Compressor - Compress JPG, PNG, and WebP in Bulk

Upload up to 20 images, choose a compression level, and reduce file size directly in the browser. Review what each file saved, download items one by one, or export the batch as a ZIP.

Up to 20 at once Smart compression Private and in-browser No login required

Drag your .JPG.JPEG.PNG.WEBP images here

Up to 20 images, max 5 MB each
0 images
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Result
How It Works
1. Upload or drag your images
2. Set a quality level
3. Compress the batch
4. Review savings for each file
5. Download the optimized results
Good to Know
JPG and WebP respond to the quality slider, while PNG compression preserves transparency. The files stay on your device during processing.
Compression overview

What an Image Compressor Helps You Improve

An image compressor reduces file size so images load faster and take up less space without forcing you to rebuild them from scratch. It is one of the simplest ways to improve page weight, upload speed, and media management across websites, content systems, and product catalogs.

This tool is designed for practical batch work. You can upload several files, choose a quality level once, and quickly compare how much each image changed before you download the finished results.

Because the compression happens in the browser, it is also useful for privacy-sensitive workflows where you do not want to send assets to an external service.

Why teams compress images

Faster pages

Lighter images reduce download time and help users reach visible content sooner.

Easier publishing

Smaller files are easier to upload into CMS platforms, marketplaces, and email builders.

Lower transfer cost

Optimized media reduces storage overhead and repeated bandwidth usage over time.

How to use it

Compress a Batch of Images in Four Steps

The tool is built for quick production work. Add your files, choose a quality target, and review the output before exporting the finished versions.

1

Add your images

Upload JPG, JPEG, PNG, or WebP files and build a batch of up to 20 images.

2

Set quality once

Use the slider to balance file size and clarity for the current batch.

3

Review the results

Check original size, new size, and percentage saved for each image before exporting.

4

Download what you need

Save images individually or download the batch as a ZIP when multiple files are ready.

Compression controls

How the Quality Setting Affects Your Files

The quality slider gives you a simple way to decide how aggressively the tool should optimize your images. Lower values usually save more space, while higher values preserve more visual detail.

Higher quality

Best for portfolio images, product shots, or assets where clarity matters more than maximum reduction.

Balanced range

A middle setting is often the safest place to start for blog images, general site media, and uploads.

Lower quality

Useful when file size matters most, such as email assets, quick previews, or draft content.

Format behavior

What the tool does with each image type

Different file types respond differently to compression. This compressor keeps the workflow simple while still adapting to the uploaded format behind the scenes.

JPG
Great for photos and content images where visual smoothness matters.
PNG
Useful for transparency and graphics that need clean edges and stable alpha handling.
WebP
A modern web format that often compresses smaller while keeping strong visual quality.
Common use cases

Where Bulk Image Compression Saves the Most Time

The biggest gains usually come from repeat work. These are the situations where batch compression is most helpful for teams, site owners, and content editors.

Website publishing

Prepare blog images, landing page assets, or content library uploads before they reach the CMS.

Product catalogs

Reduce the weight of product photos so category pages and listings stay faster on desktop and mobile.

Email and campaigns

Create lighter promotional assets that load more quickly across inboxes and campaign builders.

Team asset cleanup

Standardize image size across batches before sharing to clients, teammates, or staging environments.

Helpful tips

How to Get Better Compression Results

A better compression workflow is usually about choosing the right images and reviewing output with intention, not just forcing every file to the smallest possible size.

Start in the middle range

A balanced quality setting is usually the best first pass when you do not yet know how aggressively the files can shrink.

Check detail-heavy images separately

Photos with text, UI screenshots, or fine texture may need a slightly higher setting than general decorative images.

Use compression with resizing when needed

If a file is both oversized and physically too large, resize it as well so the final asset is lighter in every dimension.

Privacy and output

What to Expect From the Exported Files

The tool keeps the workflow local and transparent. You can compare savings file by file, then decide whether to keep the compressed version for production, upload, or delivery.

Private processing

Compression runs in the browser, which is useful when you are handling internal or pre-release assets.

Visible savings

The results table makes it easy to judge whether the size reduction is worth keeping for each file.

More SEOLark tools

Related Tools for Working With Images and Web Assets

After compressing files, this tool can help you resize, convert, inspect, or reuse images in the next part of your workflow.

Ready to optimize

Compress Your Images and Keep Your Workflow Moving

Add your files above, test a quality level, and export the results that best match your website, campaign, or content library needs.

FAQ

Frequently Asked Questions

These quick answers cover image quality, privacy, supported formats, and what to expect from the batch workflow.

It depends on the image and the quality level you choose. A moderate setting usually keeps images looking strong while still reducing file size, which is why testing one batch before publishing is a good habit.

No. The compression is handled locally in the browser, which makes the tool useful for private assets, client materials, and internal content workflows.

Yes. PNG files are handled with transparency in mind, so they remain useful for logos, interface graphics, and layered web assets.

You can process up to 20 images in one batch, with a maximum size of 5 MB per file in the current interface.

Compression results depend on the original format, image detail, color complexity, and current quality setting. Some files have far more removable weight than others.

Yes. Smaller images reduce transfer weight and usually improve loading performance, which supports better user experience and can help the technical side of SEO.