ImageOptim

ImageOptim makes images load faster. Removes bloated metadata. Saves disk space & bandwidth by compressing images without losing quality.

Free Open Source Mac

RIOT - Radical Image Optimization Tool

Saving images for web/email/other media with the best compression ratio and quality is a difficult task if you don’t have the right tools. Choosing the right format then...

• Warning Installer contains Open Candy adware and potentially more: https://www.virustotal.com/en/file/5c69ba60d82abbf73c6ac27a0cf39b054cb5a7cbc6fc8a6cb00d4daa6e069b73/analysis/

Free Windows GIMP XnView IrfanView

PNGGauntlet

-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 ...

Free Windows

pngquant

pngquant is a command-line utility and a library for lossy compression of PNG images. The conversion reduces file sizes significantly (often as much as 70%) and...

Free Open Source Mac Windows Linux

OptiPNG

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...

Free Open Source Mac Windows Linux

pngcrush

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.

Free Open Source Windows Linux

PngOptimizer

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...

Free Open Source Windows Linux PortableApps.com

JPEGmini

JPEGmini is a patent-pending photo recompression technology, which significantly reduces the size of photographs without affecting their perceptual quality. The...

Commercial Mac Windows

Kraken Web Optimizer

With Image Optimizer you can losslessly optimize your PNG, JPEG and GIF files and thus save your bandwidth and your users' time! Kraken recompresses images with...

Freemium Web Chrome Firefox

Optimus.io

optimus.io offers lossless compression of images available with a WordPress plugin and via API. Benefits: - The file size will be reduced but the image quality...

Freemium Web Wordpress

TruePNG

TruePNG 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...

Free Windows

PNGOUTWin

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...

Commercial Windows

Free EXIF Eraser

Free EXIF Eraser is a free lightweight software that allows you to easily and effectively delete entire EXIF/IPTC/XMP information from image files.

Free Windows

jStrip

jStrip is a free tool to reduce the file size of JPEG images without sacrificing image quality. High-traffic websites with many JPEG images can benefit from decreased...

• Discontinued jStrip's official site is no longer accessible, but it has been archived by Archive.org: https://web.archive.org/web/20150516175309/http://davidcrowell.com/jstrip

Free Windows

JPEG Resampler

With JPEG Resampler you are able to change the resolution and size of JPEG images of a directory in one go and move them into another folder. Source as well as the...

Free Windows