Roc

Zig

ziglang.org

Rising

Simple systems language and C/C++ toolchain used by Bun and TigerBeetle; development moved to Codeberg.

Gleam

gleam-lang/gleam

Rising

Friendly, statically typed functional language for the Erlang VM and JavaScript.

Mojo

modular/modular

Rising

Pythonic systems language for AI and GPU programming from Modular; 1.0 open-sourced in 2026.

Odin

odin-lang/Odin

Data-oriented C alternative popular in game development and graphics tooling.

MoonBit

moonbitlang/core

New

AI-friendly language optimized for WebAssembly, JavaScript and native targets with fast compilation.

Carbon

carbon-language/carbon-lang

Experimental C++ successor from Google with bidirectional C++ interop; not yet production-ready.

Nim

nim-lang/Nim

Python-like syntax compiled to C/C++/JS with powerful macros and small native binaries.