Glare Node Controller is a Blender add-on by darkstarrd that adds a panel for setting up glare directly from the Render panel. It gives you a simple workflow if you'd rather not work in the Compositor, and the result is similar to the classic bloom effect.
The extension is compact at around 3.5 KB and requires no special permissions. It runs on Blender 4.2 LTS and newer and is distributed under the GNU General Public License v3.0 or later. On the Blender Extensions platform it has gathered over 10,000 downloads and holds a 5.0 rating across three reviews.
Version 2.3.3 was published in June 2025. Installation follows Blender's standard extension process: drag and drop the file into Blender, or download it and install from disk. The controls sit in the Render panel rather than the Compositor.