: Favicon best practices regarding size and format I'm busy on a WordPress site and have come to the stage to add the finishing touch, being the favicon. I'm primarily a developer so graphics

@Berumen635

There is a lot of useful information here regarding favicon sizes and generators.

I can add to the discussion by explaining the design needs of the different sizes.

Yes the favicon, icon, symbol and logo sizes can be based on the same art but each must be rendered specifically to that size to appear the most accurate (I'm saying that the auto generators will not handle the aliasing and gradients well at the 16 pixel size and the auto generated image will not be optimized for the 128 px size if you started smaller.

Draw your art at 128 pix or any large size square format, using all the 3d tricks you'd like. Export the different size icons one at a time, examining the result and adjusting master to work best at that size.

For the 16 x 16 I will make a 16x16 grid of squares and color them individually to have the most control of output.

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@Nimeshi706

What to include?

The Minimum

<!-- Desktop browsers (including 16x6, 32x32 & 48x48 PNGs) -->
<link rel="shortcut icon" href="/favicon.ico">

<!-- Modern browsers (196x196 should cover all modern browsers) -->
<link rel="icon" type="image/png" href="/favicon.png">

<!-- iOS & other mobile devices (ideally 180x180, at least 120x120) -->
<link rel="apple-touch-icon" href="touch-icon-iphone.png">


For the Obsessive

<!-- Desktop browsers (including 16x6, 32x32 & 48x48 PNGs) -->
<link rel="shortcut icon" href="/favicon.ico">

<!-- Modern browsers & Devices -->
<link rel="icon" type="image/png" href="/favicon-16x16.png" sizes="16x16">
<link rel="icon" type="image/png" href="/favicon-32x32.png" sizes="32x32">
<link rel="icon" type="image/png" href="/favicon-48x48.png" sizes="48x48">
<link rel="icon" type="image/png" href="/favicon-64x64.png" sizes="64x64">
<link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96">
<link rel="icon" type="image/png" href="/favicon-128x128.png" sizes="128x128">
<link rel="icon" type="image/png" href="/favicon-196x196.png" sizes="196x196">

<!-- iOS & other mobile devices -->
<link rel="apple-touch-icon" href="touch-icon-iphone.png">
<link rel="apple-touch-icon" sizes="76x76" href="touch-icon-ipad.png">
<link rel="apple-touch-icon" sizes="120x120" href="touch-icon-iphone-retina.png">
<link rel="apple-touch-icon" sizes="152x152" href="touch-icon-ipad-retina.png">
<link rel="apple-touch-icon" sizes="167x167" href="touch-icon-ipad-pro.png">
<link rel="apple-touch-icon" sizes="180x180" href="touch-icon-iphone-6plus.png">

<!-- Windows Tiles (optionally omitted and replaced with browserconfig.xml in root directory) -->
<meta name="msapplication-TileColor" content="#582686" />
<meta name="application-name" content="Your Website" />
<meta name="msapplication-square70x70logo" content="tile-small.png" />
<meta name="msapplication-square150x150logo" content="tile-medium.png" />
<meta name="msapplication-wide310x150logo" content="tile-wide.png" />
<meta name="msapplication-square310x310logo" content="tile-large.png" />




favicon.ico

favicon.ico is the oldest of the favicons, it has worked since before a lot of people reading this were born and still works perfectly today.

Microsoft recommends including images sized 16x16, 32x32 and 48x48.

The standard way to define your favicon:

<link rel="shortcut icon" href="/favicon.ico" />


Browsers will search the root directory of your website for favicon.ico so you can omit the link. Some older browsers will default to the declared favicon.ico even if there is a more appropriate sized PNG declared, so leaving the ICO undeclared in the root and declaring different sized PNGs may be a good idea.



favicon.png

HTML5 introduced the sizes attribute to help declare multiple sized icons. Using specific PNGs gives you greater control over the sizes used and means only the correct image is being loaded.

<link rel="icon" type="image/png" href="/favicon-16x16.png" sizes="16x16">
<link rel="icon" type="image/png" href="/favicon-32x32.png" sizes="32x32">
<link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96">


w3.org - HTML5 - Link type "icon"


The sizes you declare depends on the devices you want to support. Some common and not-so-common sizes:


32x32
48x48
64x64
96x96
128x128 Chrome Web Store icon
160x160 Chrome for Android
192x192 Chrome for Android
195x195 Opera Speed Dial icon
196x196 Chrome for Android
228x228 Opera Coast icon




Apple Touch Icon

iOS web clip icons come in a number of sizes for different devices and resolutions. You can specify one or a number of sized icons, if no icon at the relevant size is found, the generic icon with no declared size will be used.

If no icons are specified using a link element, iOS will search the root directory for icons with the apple-touch-icon prefix. iOS devices aren't (strangely enough) the only devices to use these icons (Android Chrome, for example) so declaring them is the safer option.

<link rel="apple-touch-icon" href="touch-icon-iphone.png">
<link rel="apple-touch-icon" sizes="76x76" href="touch-icon-ipad.png">
<link rel="apple-touch-icon" sizes="120x120" href="touch-icon-iphone-retina.png">
<link rel="apple-touch-icon" sizes="152x152" href="touch-icon-ipad-retina.png">
<link rel="apple-touch-icon" sizes="167x167" href="touch-icon-ipad-pro.png">
<link rel="apple-touch-icon" sizes="180x180" href="touch-icon-iphone-6plus.png">



iOS Human Interface Guidelines - Icon Sizes
iOS Developer Library - Specifying a Webpage Icon for Web Clip




Windows Tiles

Tiles are used when you pin a website to the start screen on either Windows or Windows Phone and come in a number of sizes.

<meta name="msapplication-square70x70logo" content="tile-small.png" />
<meta name="msapplication-square150x150logo" content="tile-medium.png" />
<meta name="msapplication-wide310x150logo" content="tile-wide.png" />
<meta name="msapplication-square310x310logo" content="tile-large.png" />


The recommended image sizes are larger than the names of those images suggest. These are the recommended sizes from microsoft.com

| Minimum | Recommended
Small | 70 x 70 | 56 x 56 | 128 x 128
Medium | 150 x 150 | 120 x 120 | 270 x 270
Wide | 310 x 150 | 248 x 120 | 558 x 270
Large | 310 x 310 | 248 x 248 | 558 x 558


Tile color and title

The default behaviour of tiles is to take the title of the tile from the <title> tag and respect any transparency in the tile images, showing the background color. You can customise the color and title using these meta tags:

<meta name="msapplication-TileColor" content="#582686" />
<meta name="application-name" content="Your Website" />


browserconfig.xml

All the msapplication meta tags can be removed and replaced with an XML file in the root folder called browserconfig.xml. The XML file should look like this:

<?xml version="1.0" encoding="utf-8"?>
<browserconfig>
<msapplication>
<tile>
<square70x70logo src="images/tile-small.png"/>
<square150x150logo src="images/tile-medium.png"/>
<wide310x150logo src="images/tile-wide.png"/>
<square310x310logo src="images/tile-large.png"/>
<TileColor>#582686</TileColor>
</tile>
</msapplication>
</browserconfig>




Further Reading & Resources


Favicon Cheat Sheet
Favicons, Touch Icons, Tile Icons, etc. Which Do You Need? - Written as a quiz but contains a lot of useful information (and you can just read it as an article, forget it's a quiz)
The Icon Handbook
ImageMagick - Useful command-line tool for converting images.
RealFaviconGenerator.net - Comprehensive favicon generator.
FAVIC-O-MATIC - Comprehensive favicon generator with easily customizable output formats.

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@Ogunnowo857

I too was looking for a favicon solution and didn't want to rely on any third party web services. I couldn't find any generic solutions that would work as a simple build step so I created faviconbuild. It relies on ImageMagick so you can download the latest version of that for your system or use some I have provided in my releases.

I have released it under the MIT license so anyone is free to use it for commercial or personal use, or simply get some inspiration from it. If you find any bugs or want to extend it feel free to get involved.

I will be updating the project page with more detailed information, but it already has a really handy and standard help menu and works on Unix, Mac, and Windows.

You simply run either the .bat or .sh script in your terminal.

ex for Windows:

faviconbuild.bat -h


or for Unix / Mac (or Windows if using Cygwin):

faviconbuild.sh -h


This will give you the version information along with the available options. The script is designed to take an input image and output all the various images required along with the required html markup to include on your website.

This is an example of how I am using it in one of my project currently:

./faviconbuild/faviconbuild.sh -i ./source.png


I simply placed the faviconbuild folder into a project specific folder so I didn't have to touch the actual project files and along side that I placed my source.png. The default behavior of the script is to put everything into a nested build folder that is gitignored so it doesn't clash with the project if you are using git.

If I am missing anything please submit a feature request.

I also have a blog post with more information.

I hope you find this useful.

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@Murray976

Use this GRUNT task to generate all possible variants:
github.com/gleero/grunt-favicons
Generates all known types and sizes icons from PNG image. Uses ImageMagick.

Input: square logo in png. You can also keep near the source files with resolution prefix e.g. source.16x16.png.

Output:

favicon.ico (16x16, 32x32, 48x48) — desktop browsers, address bar, tabs, safari reading list, non-retina iPhone, windows 7+ taskbar, windows desktop;
favicon.png (64x64) — modern browsers;
apple-touch-icon.png (57x57) — iPhone non-retina, Android 2.1+;
apple-touch-icon-60x60.png (60x60) — iPhone iOS7+;
apple-touch-icon-72x72.png (72x72) — iPad non-retina;
apple-touch-icon-76x76.png (76x76) — iPad non-retina iOS 7;
apple-touch-icon-114x114.png (114x114) — iPhone retina, iOS 6 and lower;
apple-touch-icon-120x120.png (120x120) — iPhone retina, iOS 7 and higher;
apple-touch-icon-144x144.png (144x144) — iPad retina;
apple-touch-icon-152x152.png (152x152) — iPad retina iOS 7;
windows-tile-144x144.png (144x144) — Windows 8 tile;
coast-icon-228x228.png (228x228) - Coast browser;
firefox-icon-16x16.png (16x16) - Firefox on Android / Windows;
firefox-icon-30x30.png (30x30) - Firefox OS;
firefox-icon-32x32.png (32x32) - Firefox on Android / Windows;
firefox-icon-48x48.png (48x48) - Firefox on Android / Windows;
firefox-icon-60x60.png (60x60) - Firefox OS;
firefox-icon-64x64.png (64x64) - Firefox on Android / Windows;
firefox-icon-90x90.png (90x90) - Firefox OS;
firefox-icon-120x120.png (120x120) - Firefox OS;
firefox-icon-128x128.png (128x128) - Firefox on Android / Windows;
firefox-icon-256x256.png (256x256) - Firefox on Android / Windows;
homescreen-196x196.png (196x196) - Android Homescreen.


Adds changes to html file.

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@Ogunnowo857

faviconit.com
will create about 15 different icon sizes for all devices from one hi-res PNG.

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@Marchetta832

The basics from Favicons - Best practice for 2013:


ICO favicon.ico (32x32)

PNG favicon.png (96x96)

Tile Icon tileicon.png (144x144)

Apple Touch Icon apple-touch-icon-precomposed.png (152x152)


And a "painfully obsessive" cheat sheet to favicon sizes/types on GitHub.

Always worth a read: www.jonathantneal.com/blog/understand-the-favicon/

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@Frith110

This tool is a super time saver. Try it out! It takes care of everything for you.

Upload your image at something around 800px x 800px so its nice and crisp.
realfavicongenerator.net/
Also add this meta tag so you can name your icon if some saves to there iOS device.

<meta name="apple-mobile-web-app-title" content="Website Name">

Hope that helps!

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