Online Bulk PNG Image Compression Tool

This tool is used for bulk online compression of PNG images. Tool Advantages: 1. Bulk upload of 20 PNG images at a time for compression. After compression, all can be downloaded at once, or they can be downloaded individually. 2. You can freely set the compression quality to find the best balance between quality and size according to your own needs. 3. Before and after compression, the image size, compression rate, etc., are clear at a glance, making it more convenient to meet different compression needs. 4. Compression is carried out entirely using the browser's API on your local machine, without any interaction with the server, ensuring the safety of your private information. 5. We achieve PNG image compression by combining color quantization, Alpha channel optimization, filter optimization, and DEFLATE compression. Although some of these steps may result in some information loss (such as color quantization), in most cases the compression is lossless and does not change the visual effect of the image. Its flexibility and efficiency make it an ideal choice for PNG image processing in web development. If you have more detailed PNG image compression needs, such as previewing and comparing images, or fine-tuning compression quality, you can use our single PNG image compression tool. If you want to compress images in other formats, you can also use our general image compression tool. If you find our tools helpful, don't forget to bookmark and share them~This tool does not upload or save your images to the server, all image processing is done in your browser.