A collection of my notes. Provided as is with no warranty of any kind expressed or implied.
I've used most of these and the others are highly recommended. I'll be using them when the need arises. Pretty much I update this list as I find better alternatives or discover new gems.
The descriptions are mostly not mine, but provide a good reminder for use-cases.
django-debug-toolbar: Gives you a running toolbar on all your pages when in development showing static contents, templates, context and a variety of other really cool things. Removes the need to debug from terminal.
django-mptt: Efficient DB storage and retrieval of hierarchical data. e.g. modelling nested sections of a website, navigation trees, or any other parent-child relationships.
django-fsm: Manage state and transitions, safely and effectively. Great for workflows. Any time you find yourself using boolean fields that are dependant and mutually exclusive, you probably need a state field.
django-crispy-forms: simple things like adding the necessary markup for bootstrap to forms is super-boring otherwise ; in general, it helps with custom form layout, which is usually a template maintenance hell
django-rest-framework: for making REST APIs - more customizable than tastypie
django-secure: to help improve any django project's security in a very simple way.
django-remote-forms: for working with django's forms in a purely RESTful way.
django-haystack: makes search really easy.
django-allauth: deals with a lot of the authentication flow for you, and supports a lot of oauth providers.
django-oauth2-provider: for easy-to-configure Oauth2 authentication in django. works nicely with tastypie and djangorestframework as an added bonus
django-taggit: a django tagging app and the autosuggest works with it to auto suggest tags that have already been used previously when you start typing.
django-braces: nice set of mixins. I'm pretty sure you have already written something similar, but these are better.
django mailer: provides a backend for sending email (EMAIL_BACKEND) which stores emails in a queue in the database, to be sent out later from a cronjob using your actual email backend.
Fabric: Run tests before committing
sorl-thumbnail: Makes it easy to process images and display thumbnails.
celery: this once was a django extension, but is still nice for delayed tasks.
selenium: for functional testing
http://www.reddit.com/r/django/comments/1ypfre/ask_rdjango_what_are_your_favourite_extensions/ https://news.ycombinator.com/item?id=7030994 Two Scoops of Django