ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization).
- - ImageOptim is the most popular Mac & SaaS alternative to pngcrush.
- - ImageOptim is the most popular Open Source & free alternative to pngcrush.
Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!.
- - TinyPNG is the most popular Web-based alternative to pngcrush.
pngquant is a command-line utility and a library for lossy compression of PNG images.
- - pngquant is the most popular Windows & Linux alternative to pngcrush.
Experimental, fast Web PNG/JPG optimizer which offer lossless, visually lossless or lossy compression. it performs image reductions over iterations thanks to recursive multi-processing and multithreading systems.
Pingo - image optimizer for web Features
Oxipng is a multithreaded lossless PNG compression optimizer in Rust. It can be used via a command-line interface or as a library in other Rust programs.
Minuimus is a file optimizer utility script: You point it at a file, and it makes the file smaller without compromising the file contents.
OptiPNG is a command-line PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections.
-Combines PNGOUT, OptiPNG, and DeflOpt to create the smallest PNGs -No image quality is lost — only file size -Converts JPG, GIF, TIFF, and BMP files to PNG -Ultra-configurable
PNGGauntlet is a .NET program that uses Ken Silvermans PNGOUT, OptiPNG and DeflOpt to optimize PNG fil.
C++ file optimizer. It supports PNG, JPEG, GZIP, and ZIP files.
Curtail (previously ImCompressor) is a useful image compressor, supporting PNG and JPEG file types. It support both lossless and lossy compression modes with an option to whether keep or not metadata of images. It is inspired by .
PngOptimizer compresses graphics files and removes extra, unnecessary data without affecting quality. It will update PNG files or converting BMP, GIF or TGA files to the PNG format using simple drag-and-drop.