

I also tried testing this app by uploading a larger PNG image (around 1.7MB in size) and it only took the web app a few seconds to compress the file to 332KB. So basically, when a 24-bit PNG image gets compressed into an 8-bit image, the image quality does not degrade so you can’t really tell the difference between the original file and the compressed file. Setting the technicalities aside, it basically uses a technique called “quantization” wherein the similar colors of your uploaded PNG image are being combined. The way this online PNG compressor works is also very simple. Anyways, this limit is quite alright especially if you’re just optimizing your images for blogs and websites. Just keep in mind that this tool has a maximum file size limit of 5MB per image. With TinyPNG, you can compress up to 20 images per batch. In addition, this tool also supports batch file compression so you can quickly compress multiple PNG files at once. Just open the web app’s official homepage (see link below) and then you simply drag and drop the PNG files that you want to compress into its top window. You don’t need to download or install anything on your computer plus it won’t even require you to log-in or register. What I like about TinyPNG is that it can be easily accessed online. Cannot be used to compress other image file formats such as GIF and JPG.Works on all modern web browsers – including those browsers for mobile devices.Supports batch file compression – you can compress up to 20 images per batch.No registration or user log-in required.

