Cyotek Spriter
TexturePacker
Sprite Sheet Packer
Sprite Sheet Animator
Free Texture Packer
Sprite Monkey
Stitches
ShoeBox
GameDevUtils.com
ShoeBox
TexturePacker
Free Texture Packer
rucksack
Sprite Monkey
Sprite Sheet Packer
Sprite Sheet Animator
Cyotek Spriter GameDevUtils.comTexturePacker - Texture Packer is hands down the best sprite sheet generation tool on the market.
ShoeBox - Free unlimited photo storage, so you can rediscover your photos anywhere. Available for iPhone, iPad, Android, Mac and PC.
Sprite Sheet Packer - Sprite Sheet Packer is online that you can easily use to pack sprite sheets, including data formats for CSS, LESS, and Phaser.
Sprite Sheet Animator - Have a sprite that you want to show off?
Free Texture Packer - Free Texture Packer is an open source tool that allows you to pack multiple images into one atlas for you games or sites.
rucksack - rucksack - texture packer and resource bundler