Pony ponylang.io ↗

Spinel ↗Languages & runtimes

Matz's ahead-of-time compiler for a statically typed Ruby subset using RBS.

mypyc ↗Languages & runtimes

A compiler that turns type-annotated Python modules into C extensions.

Perl Languages & runtimes

A general-purpose scripting language long used for CGI web interfaces.

Catala Languages & runtimes

A programming language for translating legal statutes into executable code.

PyPy Languages & runtimes

An alternative Python implementation with a tracing JIT compiler.

Zig Languages & runtimes

A systems programming language with explicit allocator passing.

F# Languages & runtimes

A functional-first programming language on .NET.

SixtyPical ↗Languages & runtimes

A 6502 assembly-like language with an effect system and flow typing.

Elixir

A functional language on the Erlang VM.

Fil-C ↗

A memory-safe implementation of C/C++ that compiles existing code with runtime safety checks.

F#

A functional-first programming language on .NET.

Inform 7 ↗

A natural-language-style programming language for writing text adventures.

Lean ↗

An interactive theorem prover and programming language used to formalize mathematical proofs.

Lobster ↗

A high-level programming language by Wouter van Oortmerssen, focused on ease of use with good performance.

Rust

A systems programming language with compile-time memory safety guarantees.

AtomVM

A lightweight Erlang/Elixir virtual machine for microcontrollers.

Catala

A programming language for translating legal statutes into executable code.

CinderX ↗

Meta's performance extension for CPython including a JIT and Static Python.

Coalton

A statically typed functional language embedded in Common Lisp.

Crystal ↗

A compiled, statically typed language with Ruby-inspired syntax.