How does it work?
Excellent question! When you upload a PNG (Portable Network Graphics) file, similar colors in your image are combined. This technique is called “quantization”. By reducing the number of colors, 24-bit PNG files can be converted to much smaller 8-bit indexed color images. All unnecessary metadata is stripped too. The result: better PNG files with 100% support for transparency. Have your cake and eat it too!
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 optimized 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 modern browsers including mobile devices. Still need to support Internet Explorer 6? It normally ignores PNG transparency and displays a solid background color. With TinyPNG the background becomes transparent again. Binary transparency without any workarounds!
Is it safe to use animated PNG?
Excellent question! Chrome, Firefox and Safari all support APNG. Google added their support in Chrome 59 only just recently in June 2017 so it is expected that the format will really start to take off from now! It only leaves Microsoft Edge and we can vote for their support.
Apple added animated stickers to iMessage with the release of iOS 10. If you want to create and compress stickers under 500 KB take a look at the example on Github.
What about Photoshop?
Excellent question! Only Photoshop CC 2015, 2017 and 2018 can save images as indexed PNG files with alpha transparency. With other versions it is impossible and Photoshop CS5 cannot even display them properly.
You can 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. You can also install the. It allows you to scale, preview and save compressed PNG and JPEG images straight from Photoshop.