ImageMagick
ImageMagick is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX.
Gifsicle is a command-line tool for creating, editing, and getting information about GIF images and animations. Making a GIF animation with gifsicle is easy. Some more gifsicle features: Batch mode for changing GIFs in place.
gifsicle is a commandline tool for creating, editing, and getting information about gif images and animations. making a gif animation with gifsicle is easy.
some more gifsicle features:
batch mode for changing gifs in place. prints detailed information about gifs, including comments. control over interlacing, comments, looping, transparency... creates wellbehaved gifs: removes redundant colors, only uses local color tables if it absolutely has to (local color tables waste space and can cause viewing artifacts), etc. it can shrink colormaps and change images to use the websafe palette (or any colormap you choose). optimize your animations! this stores only the changed portion of each frame, and can radically shrink your gifs. you can also use transparency to make them even smaller. gifsicle’s optimizer is pretty powerful, and usually reduces animations to within a couple bytes of the best commercial optimizers. unoptimizing animations, which makes them easier to edit. a dumb name.
Productivity Developer Tools Social Phots and Graphics
animated-gif-creator gif command-line-interface command-line gif-editor gif-animation gif-viewer
ImageMagick is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX.
Free Open Source Mac OS X Windows Linux iPhone iPad Xfce
ImageOptim makes images load faster. Removes bloated metadata. Saves disk space & bandwidth by compressing images without losing quality.
Free Open Source Mac OS X
Animation graphic editor easy to use - Powerful tool for spriting and pixel art.
Free Windows
Free Video to GIF Converter is a freeware utility which can convert video to gif animation simply and fast. It can convert almost all popular video formats to gif, including AVI, WMV, MPEG, MOV, FLV, MP4, 3GP, VOB, etc.
Free Windows
Giffing Tool is simply put: The fastest creator of high quality captioned GIFs available. Simply drag across your screen to record movies, YouTube videos, and even...
Commercial Windows
Cloud service that handles file uploads, video encoding, image resize, document thumbs, audio watermarking, etc.
Freemium Web
Optimize pictures without quality lossless. With Black Bird Image Optimize - you can reduce the size of your photos several times without quality loss!.
Freemium
Works with all common image formats like png, jpeg, bmp, tiff and Microsoft Office documents pptx, docx, xlsx.
Free Mac OS X Windows
Mara is a web-based software suite for quick image editing and painting. Includes a huge set of tools, among which are traditional tools for graphic editors, as well as...
Free Chrome OS Web
Small, intuitive freeware program to create, record and edit animated Gif images from various types of graphics.
Free Windows