If you have the time and patience, I recommend -O3 as was able to get much more optimized GIFs with this method. Gifsicle -O3 animation.gif -o animation-optimized.gif -O3 Try several optimization methods (usually slower, sometimes better results).-O2 Also uses transparency to shrink the file further.-O1 Stores only the changed portion of each image.Gifsicle has three types of GIF optimization to choose from: gifsicle can resize GIFs, merge GIFs, and do just about anything you'd hope you could do with a GIF. Another handy GIF manipulation library, gifsicle, has a few built in methods for optimizing GIFs.īefore jumping into the GIF optimization commands, it's important to point out that gifsicle is much more than a GIF optimizer. With gifsicle the already existing animated GIF can be optimized: ckadmmintp gifsicle -O3 /tmp/output3.gif -o /tmp/output6.gif ckadmmintp du -h /tmp/output 1.1M /tmp. So far the best sized GIF is still the first method, using the ffmpeg defaults (without a colour palette): output3.gif. These options will be used: -O3 : this sets the optimization level to Gifsicles maximum, which produces the slowest but. Since GIFs can be taxing on the user's machine, it's best to optimize GIFs for top performance. Further reduce the GIF size with gifsicle. Even though Gifski is open-source, it is important to note that Gifski requires a commercial license to be used in closed-source projects.I've written a lot about converting different media types lately, especially GIFs, including Convert Video to GIF or GIF to Video, Detect if a GIF is Animated, and Get the First Frame of an Animated GIF with ImageMagick, but whether it's ImageMagick or ffmpeg doing the work, GIFs do not always come out optimized. You can also use transparency to make them even smaller. Level determines how much optimization is done higher levels take longer, but may have better results. Optimize your animations This stores only the changed portion of each frame, and can radically shrink your GIFs. Gifski is a command-line tool like FFmpeg, but specialized in creating the highest-quality GIFs using cross-frame palettes and temporal dithering. Optimize a GIF as a new file: gifsicle path/to/input.gif-optimize3 -o path/to/output.gif Unoptimize a GIF in place: gifsicle -b path/to/input.gif-unoptimize. It is possible to create even better GIFs with Gifski. Finally, scale=360:-1 resizes the video to 360 pixels wide, making the GIF file much smaller.įor a GIF that is both high-quality and reasonable in size, we can combine the above commands: $ ffmpeg -ss 3 -to 8 -i input.mp4 -filter_complex "fps=10,scale=360:-1 split palettegen paletteuse" output.gif FFmpeg vs.Your input video will usually have a frame rate of 25 fps or more, which is too high for a GIF. The fps=10 sets the GIF frame rate to 10 fps (frames per second).GIF files will be changed to interlaced or non-interlaced automatically, whichever is smaller. I recommend making GIFs no longer than 5 seconds to maintain a manageable file size. If checked, ImageOptim will try to optimize GIF files using Gifsicle. If your input video is very long, this will help you cut only the part of the video you want to convert to GIF. How To Make and Optimize GIFs on the Command Line Step 1 Installing ffmpeg, Gifski, and Gifsicle. The -ss 3 -to 8 arguments instruct FFmpeg to trim the video beginning at the 3-second mark and ending at the 8-second mark.You can do this in the following way: $ ffmpeg -ss 3 -to 8 -i input.mp4 -filter_complex "fps=10, scale=360:-1" output.gif To avoid significant load times, it's best to reduce the resolution and frame rate of the GIFs to a maximum of a few megabytes. That's because GIF is a very simple format without many compression techniques, unlike modern video formats such as H.264. You might have noticed that the GIFs grow extremely large in file size – just a simple GIF can be dozens of megabytes. You can reduce the size by reducing the number of colors: 512KB, 256 colors. gifsicle -i anim.gif -O3 -colors 256 -o anim-opt.gif This will optimize and reduce to 256 colors, if the animation uses more colors (the example image does). Sets the maximum number of instances of Imagemin that can run at once. The new GIF with optimized color palette on the right. Use gifsicle (available for Mac OS X, Windows, DOS, Debian, FreeBSD and NetBSD). type: Number default: the number of logical CPUS on the system.
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