Django favicon plus is a simple Django app which allows you to upload a image and it renders a wide variety for html link tags to display the favicon.
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README.md

django-favicon-plus

PyPI

Django favicon plus is a simple django app which allows you to upload a image and it renders a wide variety for html link tags to display the favicon. These different tags are used for bookmark links on mobile devices or they appear if you favorite a website in your browser.

How to use:

Install django-favicon using PIP.

pip install django-favicon-plus
 
pip install git+https://github.com/arteria/django-favicon-plus.git

Add app to INSTALLED_APPS List in your settings.py file, make sure sites-app is also installed and a URL is specified in the admin backend

INSTALLED_APPS = (
    ...
    'django.contrib.sites',
    ...
    'favicon',
    ...
)

The default FAVICON_CONFIG look like this, if you want something else you can define it in your settings.py. The key of the dictionary is the value for the rel attribute of the link tag, while the list in the value are the sizes for the size attribute and the image resizing.

FAVICON_CONFIG = {
    'shortcut icon': [16 ,32 ,48 ,128, 192],
    'touch-icon': [196],
    'icon': [196],
    'apple-touch-icon': [57, 72, 114, 144, 180],
    'apple-touch-icon-precomposed': [57, 72, 76, 114, 120, 144, 152,180],
}

Upload an image in the admin backend --> all the size will be created, its best to take a larger base favicon

use the templatetag in your base.html

{% load favtags %}
    
{% placeFavicon %}

this will create:

<link rel="apple-touch-icon-precomposed" size ="180x180" href="/media/favicon/fav-180.png"/>
<link rel="apple-touch-icon-precomposed" size ="152x152" href="/media/favicon/fav-152.png"/>
<link rel="apple-touch-icon-precomposed" size ="144x144" href="/media/favicon/fav-144.png"/>
<link rel="apple-touch-icon-precomposed" size ="120x120" href="/media/favicon/fav-120.png"/>
<link rel="apple-touch-icon-precomposed" size ="114x114" href="/media/favicon/fav-114.png"/>
<link rel="apple-touch-icon-precomposed" size ="76x76" href="/media/favicon/fav-76.png"/>
<link rel="apple-touch-icon-precomposed" size ="72x72" href="/media/favicon/fav-72.png"/>
<link rel="apple-touch-icon-precomposed" size ="57x57" href="/media/favicon/fav-57.png"/>
<link rel="apple-touch-icon" size ="180x180" href="/media/favicon/fav-180_5l5PyO1.png"/>
<link rel="apple-touch-icon" size ="144x144" href="/media/favicon/fav-144_5A8THfC.png"/>
<link rel="apple-touch-icon" size ="114x114" href="/media/favicon/fav-114_GqBGFXA.png"/>
<link rel="apple-touch-icon" size ="72x72" href="/media/favicon/fav-72_UoWu9ik.png"/>
<link rel="apple-touch-icon" size ="57x57" href="/media/favicon/fav-57_sfX3XoJ.png"/>
<link rel="touch-icon" size ="192x192" href="/media/favicon/fav-192.png"/>
<link rel="shortcut icon" size ="192x192" href="/media/favicon/fav-192_rD0bCKr.png"/>
<link rel="shortcut icon" size ="128x128" href="/media/favicon/fav-128.png"/>
<link rel="shortcut icon" size ="48x48" href="/media/favicon/fav-48.png"/>
<link rel="shortcut icon" size ="32x32" href="/media/favicon/fav-32.png"/>
<link rel="shortcut icon" size ="16x16" href="/media/favicon/fav-16.png"/>
<link rel="icon" size ="192x192" href="/media/favicon/fav-192_Gw5Uu1M.png"/>
<link rel="shortcut icon" size ="32x32" href="/media/favicon/fav-32.png"/>

Management

You can upload multiple images, but only one is set as favicon and used.

Contribution

If you want to contribute something send a PR.

Source

Based on

Favicon Cheat Sheet on github

Favicon

16x16 .ico or better .png

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

apple-touch-icon(-precomposed)

57x57, 72x72, 114x114, and 144x144 highest resolution for ipad retina 144x144.png precomposed(=iOS won’t add any effects to the icon)

<link rel="apple-touch-icon" sizes="144x144" href="/images/apple-touch-icon-144x144.png">
<link rel="apple-touch-icon" sizes="114x114" href="/images/apple-touch-icon-114x114.png">
<link rel="apple-touch-icon" sizes="72x72" href="/images/apple-touch-icon-72x72.png">
<link rel="apple-touch-icon" sizes="57x57" href="/images/apple-touch-icon-57x57.png">

<link rel="apple-touch-icon-precomposed" sizes="144x144" href="/images/apple-touch-icon-144x144.png">
<link rel="apple-touch-icon-precomposed" sizes="114x114" href="/images/apple-touch-icon-114x114.png">
<link rel="apple-touch-icon-precomposed" sizes="72x72" href="/images/apple-touch-icon-72x72.png">
<link rel="apple-touch-icon-precomposed" sizes="57x57" href="/images/apple-touch-icon-57x57.png">

Android versions 1.5 and 1.6 will read the second tag (with "-precomposed"), and versions 2.1 and newer will read the first tag.

Google's specifications say that you should use 48x48 pixel PNGs, but you can use a large image (128x128), like Google does for its own apps.

https://mathiasbynens.be/notes/touch-icons

django-favicon-plus is free software. If you find it useful and would like to give back, please consider to make a donation using Bitcoin or PayPal. Thank you!