Blender Add-ons

Easy HDRI (free)
Easy HRDI is a free Blender add-on that will help you to load and test your HDRI images quickly.
Stored Views (free)
Save stored views to your blend-file to easily have access to saved views later.
Archimesh (free)
An architectural design tool add-on for Blender that generates an array of architectural objects.
Archipack (free)
A toolset for architectural visualisation.
Modifier Tools (free)
A small collection of utilities for managing modifiers.
EdgeFlow (free)
This addon adds two operators to blender which both work on edgeloop selections.
Align Tools (free)
Used to align the location, rotation or scale of selected objects to the active object on the specified axes.
TexTools (free)
A set of professional UV and Texturing tools.
UV-Packer (free)
An optimal, automated “single-click” UV packing app.
Blender OSM (free)
One click download and import of OpenStreetMap and terrain for Blender.
fSpy Importer (free)
This is the official fSpy importer add-on for Blender.