Compress images

Reduce file size while keeping images looking right. Every result shows exactly how much you saved.

General

Compress ImageReduce JPG, PNG and WebP file size Compress to KBHit a maximum file size, e.g. 100 KB

By format

Compress JPGJPG quality control with size preview Compress PNGPalette or lossless PNG optimization Compress WebPSmaller WebP with quality control

Use Compress Image for mixed files, the format-specific tools when you want format-specific controls, and Compress to KB when a form or website sets a maximum file size.

Which one do I need?

A form says “maximum 100 KB”Compress to KB →
A mix of JPG, PNG and WebP filesCompress Image →
A logo, icon or screenshot PNGCompress PNG →
A photo much larger in pixels than it’s shownResize Image →

Compression tools compared

Tool	Formats	Type	You control
Compress Image	JPG, PNG, WebP	Lossy	Quality and output format
Compress JPG	JPG	Lossy	Quality
Compress PNG	PNG	Palette (lossy) or lossless	Number of colors
Compress WebP	WebP	Lossy	Quality
Compress to KB	JPG or WebP output	Lossy	Maximum file size

Lossy vs lossless explained: Lossy vs Lossless Image Compression.

Guides for compress

How to Reduce Image File Size Without Making It Look BadThe three things that actually make image files smaller (dimensions, format and quality) and how to combine them without visible damage.Lossy vs Lossless Image CompressionHow to choose between lossy and lossless compression: what each does to photos, screenshots and graphics, why repeated saves add up, and which quality to pick.Best Image Sizes for WebsitesHow to choose pixel sizes for website images: heroes, content images, thumbnails, logos and social-sharing images, plus high-density screens, responsive images and file-size targets.

How much smaller can images get?

It depends on the image and the format. In our tests, a 469 KB photo of apples became 99 KB with Compress to KB (79% smaller), and a 3.4 MB transparent PNG became 859 KB with Compress PNG. Photos straight from a camera usually shrink the most. Photos usually shrink the most; images that are already compressed shrink less.

Choosing the right tool

Use Compress to KB when a form sets a hard limit, such as 100 KB. Use Compress Image for a mix of JPG, PNG and WebP files, or the format-specific tools when you want full control over that format. If an image is still too large, reduce its pixel dimensions with Resize Image first: halving the width and height cuts the pixel count by three-quarters. Our guide How to Reduce Image File Size explains every option.