Shrink PNG files
Advanced lossy compression for PNG images that preserves full alpha transparency.
What does TinyPNG do?
TinyPNG uses smart lossy compression techniques to reduce the file size of your PNG files. By selectively decreasing the number of colours in the image, fewer bytes are required to store the data. The effect is nearly invisible but it makes a very large difference in file size!
Why should I use TinyPNG?
PNG is useful on the web because it's the only widely supported format that can store partially transparent images. The format uses compression, but the resulting files can still be large. Use TinyPNG to shrink images for your website. It will use less bandwidth and load faster.
How does it work?
Excellent question! When you upload a PNG (Portable Network Graphics) file, similar colours in your image are combined. This technique is called “quantisation”. Because the number of colours is reduced, 24-bit PNG files can be converted to much smaller 8-bit indexed colour images. All unnecessary metadata is stripped too. The result: tiny 8-bit PNG files with 100% support for transparency. Have your cake and eat it too!
Can anyone tell the difference?
Excellent question! Let me give you a side by side comparison. Below are two photos of my cousin. The left image is saved as 24-bit PNG directly from Adobe Photoshop. On the right is the same image, processed by TinyPNG. Spot any difference?
File size: 57 KB
File size: 16 KB
In the above image the file size is reduced by more than 70%. I have excellent eyesight but can't spot the difference either! Use the compressed image to save bandwidth and loading time and your website visitors will thank you.
Is it supported everywhere?
Excellent question! The files produced by TinyPNG are displayed perfectly on all major browsers including mobile devices.
Internet Explorer 6 normally ignores PNG transparency and displays a solid background colour. With TinyPNG the background becomes transparent again. Binary transparency without any workarounds!
What about Photoshop?
Excellent question! Unfortunately, Adobe Photoshop CS5 and below do not properly display indexed PNG files with alpha transparency. So far no version will allow you to create such files either.
But don't worry, TinyPNG can compress any PNG file you upload. Use Save for Web to export your images as 24-bit transparent PNG files and upload them to TinyPNG. We'll convert them to tiny indexed PNG files.