Great spritesheet creation editor. Its command line version is also great for batch processing and integration with Xcode.
(Ricardo Quesada - Creator of Cocos2D-X)
Texture Packer is hands down the best sprite sheet generation tool on the market. It has more features than any of the competition and is ready for production-level games - highly recommended!
(Ray Wenderlich - Writer of Cocos2D tutorials)
Integrating the excellent TexturePacker into my build pipeline has saved me countless hours! Not sure how I lived without it.
(Ron Gilbert - creator of MonkeyIsland)
Here we are the fans of TexturePacker. Among many different small software licences we bought over years, Texturepacker is one of the best (or perhaps simply the best) and classed in our app category entitled "The App. Which we wish long life to his creator, for the time of life he has saved us by creating his tool."
(Baris Saricoglu - asynth.com)