Here are avalaible framework and librairies for making GUI for REAPER scripts. Note: Python can use external Python GUI library via reapy, but this is out of scope if this list.
- GFX. Most frameworks are ways to have interactive things done quickly to GFX canvas, for either EEL, or Lua.
-
Reaper Toolkit - rtk by tack (2021) Lua GFX based. Extensive documentation and modern look.
-
ReaImGui by cfillion (2021) Extension for all reascript languages. Extensive number of functions and widgets. Simple to use.
-
Scythe (Lokasenna v3) Lua library relying on GFX
-
Lokasenna v2 Lua library relying on GFX
-
Simple Gui Template by eugen2777 (2015) Simple UI library for Lua, feating sliders, buttons etc, in a concize way. Scripters can have their own fork of it cause it is unsuported.
-
James HE library (2015) Library used by James HE EEL scripts. Though, it lacks of documentation so it may not have been used by other scripters.
-
spk77 simple slider class for eel (2014) A minimal slider for eel.