Three simple steps
How to compress an image online
- 01
Choose a JPG, PNG or WebP image from your device.
- 02
Adjust image quality and maximum dimensions, then compress the image locally in your browser.
- 03
Compare the original and compressed file sizes and download the result.
How does browser image compression work?
ToolYogi decodes your image in the browser, draws it to a canvas and exports a new optimized file. Lower quality settings can reduce JPEG and WebP file sizes substantially. Large images can also be scaled down to reduce both dimensions and file size.
Which quality setting should I use?
For photos, a quality setting around 75–85 is often a useful starting point. Lower settings usually create smaller files but can introduce visible artifacts. PNG compression behaves differently because PNG is lossless, so reducing dimensions may have a bigger effect than changing quality.
Does ToolYogi upload my image?
No. The current Image Compressor processes the selected file locally with browser APIs. Your image is not sent to ToolYogi for compression.
A little more clarity
Frequently asked questions
Is the Image Compressor free?
Yes. You can compress supported images without creating an account.
Are my images uploaded to a server?
No. The current compressor processes images locally in your browser.
Which image formats are supported?
The tool is designed for JPG, JPEG, PNG and WebP images that your browser can decode.
Will compression reduce image dimensions?
Only when the image exceeds the maximum dimension you choose. Otherwise the original width and height are retained.
Why is a compressed PNG sometimes not much smaller?
PNG is a lossless format and browser canvas export offers limited control over its compression. For photographic images, JPEG or WebP can often produce much smaller files.
Browser-based by design
Compression uses built-in browser image and Canvas APIs. The selected image is processed on your device rather than uploaded to ToolYogi.