Most common and popular loader.
Spinner is one of loading.io's high quality ajax preloader shipped in GIF, SVG and APNG formats.
All loading.io's preloaders are designed to be used as loading state indicator during the ajax calls or content loading in your website or apps. But, you can still them for other purpose, such as a simple animated icons.
It's quite simple and straightforward to use an ajax loader with GIF, APNG and SVG. First, insert downloaded image into your webpage with
<img> tag, then simply show the icons when loading, and hide them after task is done.
To use a CSS loader, copy the generated CSS code and paste it in the HTML where you'd like to use it. The CSS loader behaves as an inline block element with desired size, but you can always overwrite it with your own CSS code.
While it's easy to control the loader's visibility with your own code, loading.io provides a handy JS library ldLoader which helps you manage your loaders. Following is an example of using a GIF loader with ldLoader:
All loading spinner in loading.io can be generated in SVG / APNG / GIF formats, while PNG sequence or static PNG are also available. To choose the right format for yourself, you should check the compatibility and quality of these file format before using them.
Provides the best compatibility, while big in size and low in quality. supports only up to 256 colors at most.
Supported by all browsers, even by old browser such as IE5 or Netscape.
Gives the best quality and file size but is CPU-intensive to render. Animation is more likely to lag when browser is busy
Animated SVG is not supported by IE or Edge.
Provides similar quality to SVG and is supported by most modern browsers, including Microsoft Edge.
However, its file size is proportional to image size, and isn't supported by older browser like IE.
Here is a comparison of different features in each format.
|Is it supported in latest version of Microsoft Edge?|
|Is it supported in IE version >=10?|
|Is it supported in IE version >= 6?|
|Is the file size small?|
|Is the image quality good?|
|Is the image responsive?|
|Is it easy to use?|
|Does it work in |
|Is it available for every spinner?|
We use SVG SMIL when animating our SVG spinner, and you might have noticed that Chrome once deprecated SMIL several years ago.
Although Chrome tended to deprecate SMIL, this action was suspended. SMIL includes features that can not be replaced with CSS Animation, and there are still people using SMIL all over the world. Furthermore, since Microsoft Edge has officially changed it's engine to Chromium, you can think SMIL as it has been supported by all modern browsers.
Since we provide GIF / CSS as alternatives to the SVG animation, you are free to choose what format to use in your own projects; however, we still think SMIL is a powerful language, and you can help it to gain more popularity by using SMIL with your project.
Any questions or suggestion? Feel free to leave comment here. :)
turning off the edge smoothing option might help
By its design, GIF is quite limited in quality especially with transparency on. If you got GIF with colored border around edges of generated image, you can turning off
Edge Smoothing option and try again.
This option will give crispy edges around generated image, but might lead to pixelated result, so please use it at your discretion. For more information, check our guide about improving GIF image quality.
update palette with picked colors in editor
This will bring up the palette editor with a new palette from all colors you have picked in this editor. Current chosen palette won't be replaced before you click "Use This Palette".
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Service for making ajax loaders / loading gifs / preloaders and animated icons, live background, animated text in GIF / SVG / APNG / CSS.