Exif Purge - EXIF Purge is a small portable application to remove EXIF meta data from multiple images at once.
TinyPNG - Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!
PhotoME - PhotoME is a powerful tool to show and edit the meta data of image files.
ImageOptim - Faster web pages and apps.
Scrambled Exif - Scrambled Exif (pronounced eggsif) helps you remove the metadata in your pictures before you share...
TinyJPG - Compress JPEG images with perfect quality and file size