C#/WinForms — source
Author: Dmitri Suvorov
Techs: C#, WinForms.
Clojure/Seesaw — source
Author: Eugen Kiss
Techs: Clojure, Seesaw.
ClojureScript/Om — source
Author: Dave Clayton
Techs: ClojureScript, Om.
Elm — source
Author: Eugen Kiss
Techs: Elm.
Notes: Incomplete and rather old (2014)
FOAM — source
Author: Kevin Glen Roy Greer
Techs: FOAM.
GHCi GUI toolkit — source
Author: Péter Diviánszky
Techs: Haskell, GHCi-GUI.
Groovy/Fenja (SodiumFRP) — source
Author: Sven Reinck
Techs: Groovy, Fenja, SodiumFRP.
Java7/Swing — source
Author: Eugen Kiss
Techs: Java7, Swing.
Notes: Reference implementation
Java8/JavaFX|ReactFX — source
Author: Eugen Kiss
Techs: Java8, JavaFX, ReactFX.
Kotlin/TornadoFX — source
Author: Karl
Techs: Kotlin, TornadoFX.
Phix — source
Author: petelomax NA
Techs: Phix.
Qt5 — source
Author: Jean-Michaël Celerier
Techs: Qt5.
React/MobX — source
Author: Eugen Kiss
Techs: React, TypeScript, MobX.
Red — source
Author: Gregg Irwin
Techs: Red.
reflex-dom — source
Author: Moritz Drexl
Techs: Haskell, reflex-dom.
Scala/ScalaFX|Scala.Rx|ReactFX — source
Author: Eugen Kiss
Techs: Scala, ScalaFX, Scala.Rx, ReactFX.
Svelte — source
Author: Rich Harris
Techs: Svelte, JavaScript.
Tcl/Tk — source
Techs: Tcl, Tk.
Vanilla React — source
Author: Andrew Greenh
Techs: React.
VFP — source
Author: Hernan Cano M
Techs: VFP.