Radical Image Optimization Tool (RIOT) is a free image optimizer that will let you to visually adjust compression parameters.
Image Tuner
Free Personal
Image Tuner is a free batch image resizing, renaming, conversion and watermarking software with a super-intuitive and straightforward interface.
PngOptimizer
Open Source
PngOptimizer cleans PNG files of useless or wrong information, reduces your PNG files weight.
OptiPNG
Open Source
OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information.
Light Image Resizer
Free Personal
Light Image Resizer can resize and convert images one by one or in batch as well as other features.
Compare PNGGauntlet with alternatives
Compare RIOT - Radical Image Optimization Tool and PNGGauntlet and decide which is most suitable for you.
Compare OptiPNG and PNGGauntlet and decide which is most suitable for you.
Compare Image Tuner and PNGGauntlet and decide which is most suitable for you.
Compare Light Image Resizer and PNGGauntlet and decide which is most suitable for you.
Compare PngOptimizer and PNGGauntlet and decide which is most suitable for you.