How to Change Animated GIF Speed

By  on  

Comedians would tell you that timing is the most important part of any joke. The same could be said about animated GIFs; whether they're used as a meme or to illustrate a process, the speed of an animated GIF can effect its effectiveness. With that idea in mind, I set about trying to figure out how to modify the speed of an animated GIF; let's explore it!

Let's use the following GIF as our sample:

Animated GIF

The first step in modifying a GIF's speed is determining the GIF's root speed; to determine this ratio, we'll use ImageMagick's identify command:

identify -verbose respect.gif | grep Delay
> Delay: 5x100
> Delay: 5x100

The ratio returned represents the hundredths of a second between the animated GIF's frames.

To speed up the animation, we can use a smaller ratio:

convert -delay 1x30 respect.gif respect-fast.gif

Fast animated GIF

To slow down the, we can use a larger ratio:

convert -delay 1x100 respect.gif respect-slow.gif

Slow animated GIF

Animated GIFs still have a place on the web; optimizing their effectiveness remains important. If you need to speed up or slow down an animated GIF, look no further than ImageMagick!

Recent Features

  • By
    Welcome to My New Office

    My first professional web development was at a small print shop where I sat in a windowless cubical all day. I suffered that boxed in environment for almost five years before I was able to find a remote job where I worked from home. The first...

  • By
    Convert XML to JSON with JavaScript

    If you follow me on Twitter, you know that I've been working on a super top secret mobile application using Appcelerator Titanium.  The experience has been great:  using JavaScript to create easy to write, easy to test, native mobile apps has been fun.  My...

Incredible Demos

  • By
    MooTools Equal Heights Plugin:  Equalizer

    Keeping equal heights between elements within the same container can be hugely important for the sake of a pretty page. Unfortunately sometimes keeping columns the same height can't be done with CSS -- you need a little help from your JavaScript friends. Well...now you're...

  • By
    Image Manipulation with PHP and the GD Library

    Yeah, I'm a Photoshop wizard. I rock the selection tool. I crop like a farmer. I dominate the bucket tool. Hell, I even went as far as wielding the wizard wand selection tool once. ...OK I'm rubbish when it comes to Photoshop.

Discussion

  1. Giwayume

    The last part of this article is incorrect. 1×100 means a 1/100th of a second delay between frames. It’s a smaller delay than 5×100 in the first example, smaller delay means a faster animation. 5x faster in this case.

    The reason you see it run slower in many web browsers is because they have implemented an arbitrary cap on how fast a gif can run. For example, in Firefox a 1×100 delay is magically changed to a 10×100 delay because when they initially implemented the rendering engine they figured no one would have 90hz monitors.

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!