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.

TruePNG is described as 'Is one of the most advanced PNG optimizers available. It does the most exhaustive checks for reductions, that lets it to optimize further, even if it uses a less efficient compression algorithm than others tools' and is a Image Optimizer in the os & utilities category. There are more than 25 alternatives to TruePNG for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best TruePNG alternative is ImageOptim. It's not free, so if you're looking for a free alternative, you could try ImageOptim or TinyFast. Other great apps like TruePNG are RasterFox, TinyPNG, PNGGauntlet and OptiPNG.
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.

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 .


Minuimus is a file optimizer utility script: You point it at a file, and it makes the file smaller without compromising the file contents.
Transform your images from MB to KB effortlessly with ImageMinify! Created by a dedicated developer, this user-friendly app compresses image files while maintaining their quality, making it perfect for anyone looking to reduce file size without sacrificing clarity.



ImageMinify is the most popular Android alternative to TruePNG.
AdvanceCOMP is a collection of recompression utilities for your .ZIP archives, .PNG snapshots, .MNG video clips and .GZ files.

C++ file optimizer. It supports PNG, JPEG, GZIP, and ZIP files.
From developers to developers: a cross-platform tool for losslessly image compression.

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.



Pngcrush is an optimizer for PNG (Portable Network Graphics) files. It can be run from a commandline in an MSDOS window, or from a UNIX or LINUX commandline.



tinyPNG.App provides a GUI front end for tinyPNG for your local computer so you can optimize images using the tinyPNG API service. Available on Windows, macOS & Linux.

You can use PNGOUTWin, an easy-to-use PNG optimizer, to create smaller image files and speed up your website, reach more potential customers, and decrease your bandwidth costs. You can convert and compress to PNG from TIFF, GIF, BMP, and other formats, or optimize your existing...

PNGOUTWin is the most popular commercial alternative to TruePNG.