gfredericks/debug-repl

A Clojure debug repl as nrepl middleware

elm-lang/elm-repl

A REPL for Elm

joewalker/gcli

Command-line component for Firefox/Ace/Skywriter

johnwhitington/ocamli

OCaml interpreter

friendlymatthew/gabagool

Snapshotable WebAssembly interpreter from scratch. Includes a time travel debugger

hawk/lux

Test automation framework with Expect style execution of commands

LivelyKernel/LivelyKernel

The Lively Web runtime and development environment