How much can I reduce my image file size?

Typical savings range from 30% to 80% depending on the original image and the quality setting you choose.

Will compression reduce image quality?

Some quality loss is expected with lossy compression, but at 70-85% quality the difference is usually imperceptible.

Are my images uploaded to a server?

No, everything happens locally using the Canvas API — your files never leave your device.

What compression method does this tool use?

It re-encodes your image using your browser's built-in canvas image encoder at an adjustable quality level — no external compression library is used.

Should I compress a PNG or a JPG for smaller file size?

JPG compression is lossy and generally shrinks photos much more than PNG, which is lossless — for photos, converting to JPG first typically saves more space than compressing a PNG.

Does compressing an image multiple times keep degrading it?

Yes, since JPG compression is lossy, re-compressing an already-compressed JPG repeatedly will introduce additional quality loss each time.

What's a good quality setting to use?

70-85% is a common sweet spot that noticeably reduces file size while keeping visible quality loss minimal — lower it further if file size matters more than appearance.

Processed 100% locally in your browser

Image Compressor

Shrink image file sizes with adjustable quality — processed 100% locally in your browser.

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Quick Answer

Image Compressor lets you: Shrink image file sizes with adjustable quality — processed 100% locally in your browser. To start, drag and drop or select one or more images from your device.

How to use this tool

1
Upload your images
Drag and drop or select one or more images from your device.
2
Set compression quality
Adjust the quality slider to balance file size and visual fidelity.
3
Compress locally
Click Compress all — your images are processed directly in your browser.
4
Download the results
Save each compressed image and compare the before/after file size.

Frequently Asked Questions

Image Resizer

Resize images to exact pixel dimensions with optional aspect ratio lock — processed 100% locally.

WebP Converter

Convert JPG, PNG, and GIF images to WebP for smaller files and faster page loads.

Image Compressor

How to use this tool

Upload your images

Set compression quality

Compress locally

Download the results

Frequently Asked Questions

How much can I reduce my image file size?

Will compression reduce image quality?

Are my images uploaded to a server?

What compression method does this tool use?

Should I compress a PNG or a JPG for smaller file size?

Does compressing an image multiple times keep degrading it?

What's a good quality setting to use?

Related Tools

Image Resizer

WebP Converter

Image Compressor

How to use this tool

Upload your images

Set compression quality

Compress locally

Download the results

Frequently Asked Questions

How much can I reduce my image file size?

Will compression reduce image quality?

Are my images uploaded to a server?

What compression method does this tool use?

Should I compress a PNG or a JPG for smaller file size?

Does compressing an image multiple times keep degrading it?

What's a good quality setting to use?

Related Tools

Image Resizer

WebP Converter