Free Image Compressor Online – Reduce Image Size Without Upload

Free online tool | Private processing

Free Image Compressor

Compress images, reduce file size, resize photos and convert supported formats directly in your browser.

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Upload your images

Choose one or more images from your device.

Choose Images

Maximum 40 images | 30 MB per file | Browser support varies

0 images selected

Compression settings

Output format WebP | Recommended JPEG / JPG PNG Keep supported original format

JPEG does not support transparency. GIF conversion creates a still image.

Image quality: 70%

Quality applies to supported lossy formats. PNG does not use this quality setting.

Resize images Keep original dimensions Resize by percentage Custom width and height Maximum width and height

Target file size

Try to reach my target size

Target mode aims for the largest output below your target using fewer encoding attempts. Exact size depends on image content and browser support.

Custom filename for the first image

Your images

Your selected images will appear here.

Compression summary

Successful

0

Failed

0

Original size

0 B

Output size

0 B

Net size saved

0 B

Overall reduction

-

Totals include successfully processed files only. Negative savings mean outputs are larger than originals.

Privacy: Images are processed locally in your browser and are not sent to this tool's image-processing server. Re-encoding may remove some metadata, but complete removal is not guaranteed.

What Is Image Compression?

Image compression reduces the data needed to store a picture. Smaller files are easier to share and can help websites load faster. Results depend on the original image, dimensions, format and settings.

How to Compress an Image Online

1. Select images.
2. Choose a format and quality.
3. Set target size or resize if needed.
4. Click Compress All Images.
5. Review and download the output.

Frequently Asked Questions

Is this tool free?

Yes. It requires no account or paid compression API.

Are images uploaded?

No. Image data is processed locally in your browser.

Will target size always be exact?

No. Exact size cannot be guaranteed for every image and format. The tool aims to get close without exceeding the target.

Does it work on mobile?

It works in compatible mobile browsers, subject to device memory and browser support.