TinyMCE is an undisputed leading platform independent web based WYSIWYG Text editor released under open-source software license. It has the ability to convert HTML textarea field to editor instance where you can play with text styling.
TinyMCE and Django
Being a Django developer, TinyMCE is my default option to go with because of simplicity and features. One can integrate TinyMCE easily with Django project. I would like to outline the integration in a few easy steps here:
Step1: Within your virtual environment install the library
Step2: Add tinymce to INSTALLED_APPS in settings.py for your project:
Step3: Add tinymce.urls to urls.py for your project
Step4: In you apps model.py, add required code
Step5: Make migrations and migrate to make a change in the database model
Thats it! You will have a nice looking text editor with your textarea.
Obviously, you have a whole lot of options available to add many features and formatting options with a TinyMCE text editor. For more details, you may browse publishers github repo (https://github.com/aljosa/django-tinymce) which offers precise guides to implement more in details.