There are 2 repositories under transcompiler topic.
SugarTeX is a more readable LaTeX language extension and transcompiler to LaTeX. Fast Unicode autocomplete in Atom editor via https://github.com/kiwi0fruit/atom-sugartex-completions
ActionScript 3 to JavaScript compiler
A dialect of Lisp that designed for Minecraft Bedrock Command System.
ProLeap COBOL • Analyze, Execute & Transform COBOL
CGEN LLVM-IR is a generator of binary-to-LLVM-IR translators. Just provide the CPU architecture.
Hadron is a language that can be transcompiled or interpreted, prioritizing efficiency and readability. It aims to be easy-to-use and expressive.
Transcompiled language to JavaScript
List of Transpilers, TransCompilers, Decompilers, etc, source to source converter, & similar & related tools/apps
Cross-compiler command line tool that converts GLSL code to other GLSL versions, HLSL and MSL
Uranium Lang: A Python and C++ based and (probably) unstable programming language
ProLeap Visual Basic 6.0 • Analyze & Transform Visual Basic 6.0
This is just a very simple SAKO-to-C compiler written in Python.
Easy Unicode input for Atom optimized for SugarTeX
A call tree translator to be used in Cuttle System