With the advancement of science and technology, the pictures taken by cameras and mobile phones are getting clearer and larger, and the mobile phones and disks with smaller capacity are beginning to be a little tight. At present, there are actually many tools that can perform low-loss, or even lossless optimization, and compress pictures, which can help you save more photos.
1、OptiPNG
OptiPNG is a specialized PNG image optimization tool that recompresses image files to a smaller size without losing any information.
OptiPNG can also convert other formats (BMP, GIF, PNM and TIFF) to the optimized PNG format and perform PNG integrity checks and corrections.
2、Jpegoptim
Jpegoptim is a tool specifically designed to optimize JPEG files, providing lossless optimization (based on Huffman tables), as well as lossy optimization with a set quality factor.
3、Leanify
Leanify is a lightweight file lossless compressor/optimizer. It removes unnecessary data (debug information, comments, metadata, etc.) and recompresses files to reduce file size.
Leanify supports image formats such as jpeg, svg, png, etc. It is completely lossless and will not reduce image quality. In addition, recursive reduction is also supported, as well as other non-image formats, including compressed formats, document formats, and more. No external dependencies, cross-platform, support Windows, Linux and Mac. A file format can be identified by its data rather than its name.
4、Pngcrush
Pngcrush is a very useful command-line tool for image optimization, which can be used to compress the size of PNG format images in batches. It mainly reduces the size of the PNG IDAT data stream by trying various compression levels and PNG filtering methods, and can also be used to remove unwanted auxiliary data.
5、Trimage
Trimage is a cross-platform tool for lossless optimization of PNG and JPG files, all image files are losslessly compressed at the highest compression level available, with EXIF and other metadata removed.
Trimage is easy to use and can be used according to personal preferences, such as regular file add boxes, direct drag and drop and various command line options.
6、ImageOptim
Imageoptim is a well-known image compression tool that reduces the size of image files by applying advanced compression techniques, thereby taking up less disk space and speeding up image downloads. Like other tools, Imageoptim removes invisible junk like private EXIF metadata from digital cameras, embedded thumbnails, comments and unnecessary color profiles.
