Awesome Transpilers

By Target Language

Golang

c2go A tool for transpiling C to Go.
Grumpy Grumpy is a Python to Go source code transcompiler and runtime.

Java

VOC A transpiler that converts Python code into Java bytecode.

JavaScript

Shift.JS Swift to JavaScript transpiler.
ElixirScript Converts Elixir to JavaScript.
GopherJS A compiler from Go to JavaScript for running Go code in a browser.
Dart2js Use the dart2js tool to compile Dart code to deployable JavaScript.

Transpilers

TypeScript Compiler

https://github.com/microsoft/TypeScript - 90K stars
https://www.typescriptlang.org/
https://github.com/kidonng/typescript - A tiny redistribution of TypeScript (10x smaller, 4MB versus 40MB)
criticism: https://gist.github.com/amcdnl/b52e9dd11850eeb8de8f#file-hate-typescript-md
alternative: JavaScript with jsdoc type annotations
- https://www.typescriptlang.org/docs/handbook/jsdoc-supported-types.html
- https://github.com/futurGH/ts-to-jsdoc
written in: TypeScript
compiles from: TypeScript
compiles to: JavaScript
last commit: 2023

Babel

https://github.com/babel/babel - 40K stars
compile new versions of JavaScript (ES2020) to old versions of JavaScript (ES2015)
written in: TypeScript, JavaScript
compiles from: JavaScript
compiles to: JavaScript
last commit: 2023

eslint

https://github.com/eslint/eslint - 24K stars
live demo: https://eslint.org/play/
website: https://eslint.org/
javascript codemods
written in: JavaScript
compiles from: JavaScript
compiles to: JavaScript

Nim

https://github.com/nim-lang/Nim - 15K stars
https://nim-lang.org/
written in: Nim (self-hosted)
compiles from: Nim
compiles to: C, C++, JavaScript

ClojureScript

https://github.com/clojure/clojurescript - 9K stars
https://clojurescript.org/
written in: Clojure
compiles from: Clojure
compiles to: JavaScript

jscodeshift

https://github.com/facebook/jscodeshift - 8K stars
toolkit for running codemods over multiple JavaScript or TypeScript files
codemods = refactoring
written in: JavaScript
compiles from: JavaScript
compiles to: JavaScript
last commit: 2023

ast-grep

https://github.com/ast-grep/ast-grep - 5K stars
CLI tool for code structural search, lint and rewriting
"grep for code"
"grep for AST nodes"
based on tree-sitter parsers
written in: Rust
compiles from: all languages
compiles to: all languages

c2rust

https://github.com/immunant/c2rust - 3K stars
Migrate C code to Rust
written in: Rust
compiles from: C, C++
compiles to: Rust

andrei-markeev/ts2c

https://github.com/andrei-markeev/ts2c - 1K stars
live demo
written in: C
compiles from: TypeScript, JavaScript
compiles to: C
last commit: 2022

OneLang

https://github.com/onelang/OneLang - 1K stars
written in: TypeScript
compiles from: TypeScript, C#, Ruby
compiles to: C++, C#, Go, Java, JS, Perl, PHP, Python, Ruby, Swift, TypeScript
last commit: 2021

cheerp

https://leaningtech.com/cheerp/
https://leaningtech.com/cheerp-2-6-compiling-c-to-webassembly-and-javascript/
https://github.com/leaningtech/cheerp-meta - 800 stars
https://github.com/leaningtech/cheerp-compiler - 200 stars
license: open source, with dual licence (GPLv2 & commercial), some plugins are closed source (WebAssembly memory profiler, Filesystem emulation)
based on: LLVM
written in: C++
compiles from: C, C++, Java, x86, Adobe Flash
compiles to: WASM

Haxe

https://github.com/HaxeFoundation/haxe - 5K stars
written in: OCaml
compiles from: Haxe
compiles to: AS2, AS3, C++, C#, Java, JS, Lua, Neko, PHP, Python

QQuick/Transcrypt

https://github.com/QQuick/Transcrypt - 3K stars
written in: Python
compiles from: Python
compiles to: JavaScript
last commit: 2022

winemaker

https://gitlab.winehq.org/wine/wine/-/blob/master/tools/winemaker/winemaker
- github mirror: https://github.com/wine-mirror/wine/blob/master/tools/winemaker/winemaker
https://wiki.winehq.org/Winemaker
part of wine: https://gitlab.winehq.org/wine/wine
- github mirror: https://github.com/wine-mirror/wine - 3K stars
https://wiki.winehq.org/Winemaker
convert Windows sources to Winelib programs
written in: Perl
languages: C, C++
compiles from: Windows
compiles to: Linux, BSD, MacOS, ...

Js2Py

https://github.com/PiotrDabkowski/Js2Py - 2K stars
https://pypi.org/project/Js2Py/
written in: Python
compiles from: JavaScript (ECMAScript 5.1)
compiles to: Python
last commit: 2022
functions: js2py.translate_js, js2py.translate_file

Fennel

https://github.com/bakpakin/Fennel - 2K stars
https://fennel-lang.org/
docs:
- https://technomancy.us/192 - self-hosting, bootstrapping
  - via: https://www.reddit.com/r/Clojure/comments/qwchlm/comment/hl4raup/
written in: Lua, Fennel (Lisp)
compiles from: Fennel (Lisp)
compiles to: Lua
last commit: 2023

Cito

https://github.com/pfusik/cito - 1.5K stars
one to many
written in: C#
compiles from: Cito
compiles to: C, C++, C#, Java, JavaScript, Python, Swift, TypeScript, OpenCL C

TypeScriptToLua

https://github.com/TypeScriptToLua/TypeScriptToLua - 1.5K stars
written in: TypeScript
compiles from: TypeScript
compiles to: Lua

jingweno/godzilla

https://github.com/jingweno/godzilla - 1.5K stars
written in: Go
compiles from: JavaScript
compiles to: Go
last commit: 2017

cincheo/jsweet

https://github.com/cincheo/jsweet - 1.3K stars
A Java to JavaScript transpiler
written in: Java
compiles from: Java
compiles to: JavaScript
last commit: 2022

google/j2cl

https://github.com/google/j2cl - 1K stars
written in: Java
compiles from: Java
compiles to: JavaScript, Closure JavaScript
last commit: 2022

Pebaz/nimporter

https://github.com/Pebaz/nimporter - 700 stars
written in: Python
compiles from: Nim
compiles to: Python
last commit: 2022

pseudo-lang

https://github.com/pseudo-lang/pseudo - 700 stars
one to many
generate readable code
help with automated translation for cases like algorithm generation, parser generation, refactoring, porting codebases
written in: Python
compiles from: Pseudo
compiles to: Python, JavaScript, Go, C#, C++, Ruby
last commit: 2021

LingDong-/wax

https://github.com/LingDong-/wax - 600 stars
A tiny programming language
written in: C
compiles from: Wax
compiles to: C, C++, Java, TypeScript, Python, C#, Swift, Lua, WebAssembly
last commit: 2022

TypeScript2Cxx

https://github.com/ASDAlexander77/TypeScript2Cxx - 500 stars
https://news.ycombinator.com/item?id=22746170
compiles from: TypeScript
compiles to: C++
last commit: 2021

putout

https://github.com/coderaiser/putout - 500 stars
live demo: https://putout.cloudcmd.io/
codemods = refactoring
written in: JavaScript
compiles from: JavaScript
compiles to: JavaScript
last commit: 2023

webcrack

https://github.com/j4k0xb/webcrack - 400 stars
live demo: https://webcrack.netlify.app/
deobfuscator, decompiler, reverse engineering
with ESM support: import, export, ...
compiles from: JavaScript
compiles to: JavaScript
last commit: 2024

wakaru

https://github.com/pionxzh/wakaru - 100 stars
live demo: https://wakaru.vercel.app/
deobfuscator, decompiler, reverse engineering
with ESM support: import, export, ...
compiles from: JavaScript
compiles to: JavaScript
last commit: 2024

jsxx

https://github.com/surma/jsxx - 150 stars
compiles from: JavaScript
compiles to: C++
last commit: 2022

ben-sb/obfuscator-io-deobfuscator

https://github.com/ben-sb/obfuscator-io-deobfuscator - 150 stars
deobfuscator for scripts obfuscated by obfuscator.io
live demo: https://obf-io.deobfuscate.io/
deobfuscator, decompiler, reverse engineering
with ESM support: import, export, ...
written in: TypeScript
compiles from: JavaScript
compiles to: JavaScript
last commit: 2024

StaticScript

https://github.com/ovr/StaticScript - 600 stars
compiles from: TypeScript
compiles to: LLVMIR (more compiler than transpiler)
last commit: 2020

ts-llvm

https://github.com/emlai/ts-llvm - 300 stars
compiles from: TypeScript
compiles to: LLVMIR (more compiler than transpiler)
last commit: 2019

muta-minits

https://github.com/nervosnetwork/muta-minits - 150 stars
compiles from: TypeScript
compiles to: LLVMIR (more compiler than transpiler)
last commit: 2019

transpyle

https://github.com/mbdevpl/transpyle - 100 stars
https://pypi.org/project/transpyle/
written in: Python
compiles:

speedy.js

https://github.com/MichaReiser/speedy.js - 350 stars
compiles from: JavaScript
compiles to: WebAssembly (more compiler than transpiler)
last commit: 2017

futurGH/ts-to-jsdoc

https://github.com/futurGH/ts-to-jsdoc - 60 stars
compiles from: TypeScript
compiles to: JavaScript (with JSDoc type annotations)
last commit: 2023

ccxt/crosspile

https://github.com/ccxt/crosspile - 60 stars
A cross-compiler from JavaScript to any language (currently, Python and PHP) // WORK IN PROGRESS (early stages)
written in: JavaScript
compiles from: JavaScript
compiles to: PHP, Python
last commit: 2017

ccxt/ast-transpiler

https://github.com/ccxt/ast-transpiler - 20 stars
AST Transpiler that converts Typescript into different languages (PHP, Python, C# (wip))
written in: TypeScript
compiles from: TypeScript
compiles to: PHP, Python
last commit: 2024

sebbekarlsson/typescript

https://github.com/sebbekarlsson/typescript - 15 stars
compiles from: TypeScript
compiles to: C
last commit: 2019

sebbekarlsson/tscc

https://github.com/sebbekarlsson/tscc - 15 stars
compiles from: TypeScript
compiles to: C
last commit: 2019

andrejusk/typescript-compiler

https://github.com/andrejusk/typescript-compiler - 15 stars
compiles from: TypeScript
compiles to: C
last commit: 2018

yakir22/ts2cpp

https://github.com/yakir22/ts2cpp - 10 stars
compiles from: TypeScript
compiles to: C++
last commit: 2018

duncanhorn/ts2cpp

https://github.com/duncanhorn/ts2cpp - 5 stars
compiles from: TypeScript interface definitions (*.d.ts)
compiles to: C++
last commit: 2019

quadramadery/js2py

https://github.com/quadramadery/js2py - 10 stars
written in: JavaScript
based on: espree-parser
compiles from: JavaScript
compiles to: Python
last commit: 2019
status: early draft

tython

https://github.com/NCPlayz/tython - 5 stars
written in: Python
based on: lark-parser
compiles from: TypeScript
compiles to: Python
last commit: 2020
status: early draft

7HR4IZ3/es62py

https://github.com/7HR4IZ3/es62py - 0 stars
written in: Python
based on: esprima-parser, js2py library
compiles from: JavaScript (ECMA 6)
compiles to: Python
last commit: 2023
status: early draft

prometeo

https://github.com/zanellia/prometeo - 500 stars
written in: Python
compiles from: Python
compiles to: C
last commit: 2022

py2many

https://github.com/py2many/py2many - 500 stars
based on: https://github.com/konchunas/pyrs - 400 stars, Python to Rust transpiler
one to many
written in: Python
compiles from: Python
compiles to: Rust, C++, (Julia, Kotlin, Nim, Dart, Go)
last commit: 2022

pyo3

https://github.com/PyO3/pyo3 - 7K stars
Rust bindings for the Python interpreter
no transpiler
use cases: write native Python modules in Rust, embed Python in a Rust binary

ts2nim

https://github.com/bung87/ts2nim - 50 stars
written in: TypeScript
compiles from: TypeScript
compiles to: Nim
last commit: 2021

clojurec

https://github.com/schani/clojurec - 1K stars
based on: ClojureScript 0e0aa7f
written in: Clojure
compiles from: Clojure
compiles to: C
last commit: 2018

hissp

https://github.com/gilch/hissp - 300 stars
https://www.reddit.com/r/Clojure/comments/toyzq2/comment/i280x1f/
written in: Python
compiles from: Lisp
compiles to: Python
last commit: 2023

kalai

https://github.com/kalai-transpiler/kalai - 200 stars
via: https://elangocheran.com/2020/03/18/why-clojure-lisp-is-good-for-writing-transpilers/
- via: https://www.reddit.com/r/Clojure/comments/qwchlm/why_clojure_lisp_is_good_for_writing_transpilers/
written in: Clojure
compiles from: Clojure
compiles to: Rust, C++, Java, ...
last commit: 2023

Cerberus X Trans

https://www.cerberus-x.com/cxDocs/Tools_Trans.html
https://github.com/cerberusxdev/cerberus - 200 stars
https://github.com/cerberusxdev/cerberus/tree/develop/src/transcc/builders
game development language with multiple target platforms (desktop, mobile, web)
written in: C, Cerberus X
compiles from: Cerberus X
compiles to: C++, Objective-C, C#, Java, HTML
last commit: 2023

roman01la/javascript-to-clojurescript

https://github.com/roman01la/javascript-to-clojurescript - 100 stars
written in: JavaScript
compiles from: JavaScript
compiles to: ClojureScript, Clojure
last commit: 2023

basilisp

https://github.com/basilisp-lang/basilisp - 50 stars
https://www.reddit.com/r/Clojure/comments/toyzq2/comment/i281k15/
written in: Python, Clojure
compiles from: Clojure, Lisp
compiles to: Python
last commit: 2022

Kotlift

https://github.com/studoverse/Kotlift - 400 stars, archived
deprecated in favor of Kotlin Multiplatform Mobile
written in: Kotlin, Swift
compiles from: Kotlin
compiles to: Swift
last commit: 2023

andreikop/cpp2python

https://github.com/andreikop/cpp2python - 150 stars
written in: Python
compiles from: C++
compiles to: Python
last commit: 2019

seasnake

https://github.com/pybee/seasnake - 150 stars - archived
written in: Python
compiles from: C++
compiles to: Python
last commit: 2016

Progsbase

TODO what exactly is this? a transpiler service?

https://www.progsbase.com/
"Job Payments: You can create programming jobs using the progsbase client. Create payments here to reward developers who implement a solution to your job."
closed source
Free Community Plan: convert TypeScript, Java, C, C++, JavaScript, C#, PHP, Python, Visual Basic, Swift, LibreOffice Basic, Ruby, Visual Basic
written in: Java, Progsbase
compiles from: Java
compiles to: Java, C, C++, JavaScript, C#, R, PHP, Python, Visual Basic
since: 2018

jtransc

https://github.com/jtransc/jtransc - 500 stars - archived
written in: Java
compiles from: Java, Kotlin
compiles to: JavaScript, C++, D, C#, PHP, AS3, Dart, Haxe

specs-feup/clava

https://github.com/specs-feup/clava - 50 stars
applies analysis and transformations written in LARA scripts (which is based on JavaScript)
based on: Clang
written in: Java
languages: C, C++, CUDA, OpenCL
last commit: 2022

RapidFingers/Craxe

https://github.com/RapidFingers/Craxe - 40 stars
written in: Haxe
compiles from: Haxe
compiles to: Nim
last commit: 2019

Ranger

https://github.com/terotests/Ranger - 5 stars

written in: JavaScript
self hosting
compiles from: Ranger?
compiles to: JavaScript, Java, Go, Swift, PHP, C++, C#, Scala
last commit: 2018

cxx2cs

https://sourceforge.net/projects/cxx2cs/

compiles from: C++
compiles to: C#
last commit: 2015

J2CL

https://github.com/google/j2cl - 1K stars

Java to Closure JavaScript transpiler
optimizes with Closure Compiler https://github.com/google/closure-compiler
compiles from: Java
compiles to: JavaScript
last commit: 2022
successor of: GWT

GWT

https://github.com/gwtproject/gwt - 1.5K stars
aka: Google Web Toolkit
written in: Java
compiles from: Java
compiles to: JavaScript
last commit: 2022

SequalsK

paper: SequalsK—A Bidirectional Swift-Kotlin-Transpiler (2021)
- https://dijkstra.iem.thm.de/Schultes-SequalsK-Preprint.pdf
- https://ieeexplore.ieee.org/document/9460946 (paywall)
paper: Evaluating swift-to-kotlin and kotlin-to-swift transpilers (2022)
- https://dl.acm.org/doi/10.1145/3524613.3527811 (paywall)
live demo: https://transpile.iem.thm.de/ (broken)
talk: https://www.youtube.com/watch?v=eHUCWAf9aHI
closed source
bidirectional transpiler
languages: Swift, Kotlin

python scripts to python modules

status: concept, project idea
written in: Python
compiles from: Python scripts
compiles to: Python modules
simlar to: 2to3 in Python 3.11
Python Setuptools: quick way to add scripts without "main" function as "console_scripts" entry points
Convert python script in module
chromium-depot-tools.nix

lezer-parser-import-tree-sitter-scanner

https://github.com/milahu/lezer-parser-import-tree-sitter-scanner
Helps import tree-sitter grammars and scanners.
A grammar transpiler, and a domain-specific C++ to JavaScript transpiler.
Import ANTLR grammars to lezer-parser
written in: JavaScript
compiles from: C++, tree-sitter grammars, ANTLR grammars
compiles to: JavaScript, lezer-parser grammars

Transpiler Frameworks

can be used for all languages

program transformation systems https://en.wikipedia.org/wiki/List_of_program_transformation_systems

comby

https://github.com/comby-tools/comby - 2K stars
A code rewrite tool for structural search and replace that supports about every language
written in: OCaml
languages: C, Java, Go, Swift, Rust, PHP, TypeScript, JavaScript, ...
features: refactoring

JetBrains MPS

https://github.com/JetBrains/MPS - 1.5K stars
https://www.jetbrains.com/mps/
metaprogramming language, Metaprogramming System
Create your own domain-specific language
written in: Java
license: APL2

rose compiler

https://github.com/rose-compiler/rose - 500 stars
languages: C (C89 and C98), C++ (C++98 and C++11), UPC, Fortran (77/95/2003), OpenMP, Java, Python, PHP
use cases: static analysis, program optimization, program transformation

jarble/transpiler

https://github.com/jarble/transpiler - 400 stars
translates a small subset of several programming languages into several others
translate several metasyntax notations, such as EBNF and ABNF
experimental "proof-of-concept," so it can only translate relatively simple programs
A major goal of this project is to translate TypeScript and JavaScript to other languages that compile to C or native code. For example, it's possible to translate a subset of TypeScript to Zig
written in: JavaScript
languages: JavaScript, Prolog, C, C#, PHP, Python, Lua, Perl, Haskell, Fortran, Java, OCaml, GLSL, ...

Rascal

https://github.com/usethesource/rascal - 300 stars
https://www.rascal-mpl.org/docs/WhyRascal/UseCases/SourceToSource
metaprogramming language
written in: Java
compiles from: any
compiles to: any

true-grue/raddsl

https://github.com/true-grue/raddsl - 100 stars
Tools for rapid prototyping of DSL compilers
features: parse, transform
written in: Python
last commit: 2021

LangTrans

https://github.com/LangTrans/LangTrans - 20 stars
Customize programming languages
written in: Python
features: parse, transform
syntactic preprocessor
customize the syntax of any programming language
based on: regex
last commit: 2022

codeworker

http://codeworker.free.fr/
CodeWorker can be trained to parse almost any language
last version: 2010

SemanticDesigns DMS Toolkit

https://www.semanticdesigns.com/Products/DMS/DMSToolkit.html
Software Reengineering Toolkit
closed source
languages: C++, Java, COBOL, SQL, HTML, Verilog, ...
written in: PARLANSE = parallel language. As an example, the attribute evaluation process is automatically parallelized, and can often provide a linear speedup on an N-way SMP system.

Code generators

https://github.com/topics/code-generator
https://github.com/yellicode/core - build your own code generation templates with TypeScript
- https://github.com/yellicode/typescript-extension
- Model driven: Generate code from any JSON document, or create your code models using our free, cross-platform modeling tool, Yellicode Modeler. Extend models with language- or framework specific meta data and use Yellicode's type-safe APIs to transform your models into code.

Partial evaluators

aka: partial evaluation, code optimizers, code optimization, dead code elimination, tree shaking, code compression, code minification

JavaScript

https://github.com/terser/terser - 8K stars - JavaScript parser, mangler and compressor toolkit for ES6+
https://github.com/google/closure-compiler - 7K stars - JavaScript checker and optimizer. written in Java
- https://github.com/google/closure-compiler-npm/tree/master/packages/google-closure-compiler-js - javascript version of the google closure-compiler. deprecated. last commit 2020
https://github.com/facebookarchive/prepack - 15K stars - last commit 2021. archived. outdated. does not work with javscript ESM modules
https://github.com/mindedsecurity/JStillery - 1K stars - last commit 2019 - JavaScript Deobfuscation via Partial Evaluation
https://github.com/SumeyyeSuslu/SPEjs - 5 stars - last commit 2018 - Symbolic Partial Evaluator for JavaScript. Sümeyye Süslü, Christoph Csallner, 2018
- based on Z3 SMT solver
- paper https://ranger.uta.edu/~csallner/papers/S%C3%BCsl%C3%BC18SPEjs.pdf

SVG

https://github.com/svg/svgo - 20K stars - tool for optimizing SVG files. written in JavaScript

CSS

https://github.com/linkedin/opticss - 1K stars - A CSS Optimizer

Machine Learning

https://www.altamira.ai/open-source-gpt-alternative-solutions/
https://www.ankursnewsletter.com/p/openais-gpt-3-vs-open-source-alternatives
- GPT-J and GPT-Neo are the most popular open source alternatives to GPT-3 today
GPT = Generative Pretrained Transformer
LLM = large language model
The Pile = 800 GB of English texts - https://pile.eleuther.ai/
The Stack = 6TB of source code, covering 358 programming languages
- https://huggingface.co/datasets/bigcode/the-stack
- rust: https://huggingface.co/mrm8488/bloom-560m-finetuned-the-stack-rust
HumanEval benchmark: https://github.com/openai/human-eval

ChatGPT by OpenAI

https://chat.openai.com/
works online
requires login
limitation: can translate up to 31523 characters of code = about 30 KByte, so large inputs must be splitted into smaller chunks
start the chat with: can you translate from some_input_language to some_output_language?
- can you translate from javascript to python?
- can you translate from python to javascript?
- ...
chatGPT will also transform symbol names, for example from camelCase in javascript to snake_case in python. this is hard to disable. you can ask "can you translate ... and preserve the original symbol names?" but then the output is truncated after 3K characters
on large inputs, chatGPT will return an interpretation of what the code is doing
- answer: yes. can you translate the code to some_output_language?
  - yes. can you translate the code to python?
  - yes. can you translate the code to javascript?
  - ...
- the output will pause, then click: continue generating
languages: many
based on Codex
- what language model is used by chatgpt to translate between programming languages?
  - As of my last update in January 2022, ChatGPT does not directly translate between programming languages. However, OpenAI has developed models capable of code generation and understanding code in various programming languages, such as Codex, which powers GitHub Copilot. These models are trained on large datasets of code and natural language to understand and generate code snippets based on human-written descriptions or code prompts. While ChatGPT itself may not directly perform programming language translation, it can be used in conjunction with such code generation models to facilitate communication or provide assistance in programming-related tasks.

TransCoder by Facebook

https://github.com/facebookresearch/TransCoder - 1.5K stars
- deprecated in favor of CodeGen
https://github.com/facebookresearch/CodeGen - 500 stars
based on: tree-sitter parsers
tags: ai, machine learning, generic, metaprogramming language, Metaprogramming System, transpiler framework
Create your own domain-specific language
generic transpiler, can be trained to translate all languages
written in: Python
license: MIT, Creative Commons Attribution-NonCommercial 4.0, Creative Commons Attribution-ShareAlike 2.0
languages: C++, Java, Python, ... any

OPT by Facebook

https://github.com/facebookresearch/metaseq/tree/main/projects/OPT
blog post: https://ai.facebook.com/blog/democratizing-access-to-large-scale-language-models-with-opt-175b/
license: open source (models, inference code, training code)
parameters: 175B

InCoder by Facebook

https://huggingface.co/facebook/incoder-6B
parameters: 6B

CodeGen by Salesforce

https://blog.salesforceairesearch.com/codegen/
parameters: 16B
trained on: The Pile, BigQuery (C, C++, Go, Java, JavaScript, Python)
architecture: autoregressive language models for program synthesis

CodeT5 by Salesforce

https://github.com/salesforce/CodeT5
architecture: encoder-decoder
parameters: 770M (?)
release: 2020-07-06

PolyCoder

https://github.com/VHellendoorn/Code-LMs
tags: ai, machine learning
paper https://arxiv.org/pdf/2202.13169.pdf
This model was not trained to solve programming problems and may not perform well on a benchmark such as HumanEval.
Whitespace is very important to the model, since no preprocessing was done on the input files.
parameters: 2.7B
release: 2020-10
trained on: 12 programming languages (C, C#, C++, Go, Java, JavaScript, PHP, Python, Ruby, Rust, Scala, TypeScript)
architecture: GPT-2

GPT-3 by OpenAI

license: closed source (OINO = open in name only)
parameters: 175B
architecture: auto-regressive model for next token prediction
release: 2020-06-11
price: 0.06 USD / 1K tokens - https://openai.com/api/pricing/

CodeParrot

https://huggingface.co/codeparrot
CodeParrot is a GPT-2 model trained to generate Python code
parameters: 1.5B
architecture: GPT-2
Code generation with: CodeParrot (1.5B), InCoder (6B) and CodeGen (6B)
trained on: GitHub Code (32 programming languages), ...

GPT-Neo

trained on: The Pile
parameters: 2.7B

GPT-J by EleutherAI

live demo: https://6b.eleuther.ai/
- EleutherAI also developed a simple user interface for GPT-J. This interface allows users to increase the level of creativity of the model by using a parameter known as “temperature.”
model: https://github.com/kingoflolz/mesh-transformer-jax/#gpt-j-6b
license: open source (models, inference code, training code)
parameters: 6B
trained on: The Pile
autoregressive model for text generation

GPT-NeoX by EleutherAI

https://github.com/EleutherAI/gpt-neox/
parameters: 20B
release: 2022-02

AlexaTM by Amazon

https://github.com/amazon-science/alexa-teacher-models
encoder-decoder architecture
trained on: causal-language-modeling (CLM), denoising tasks
parameters: 20B
release: 2022-11-18

Codex

tags: ai, machine learning
license: closed source
free trial: 18 USD credit
parameters: 12B

Jurassic-1 language model by AI21 labs

https://www.ai21.com/studio
license: closed source
free trial: 90 USD credit

Megatron-Turing NLG by NVIDIA and Microsoft

https://developer.nvidia.com/megatron-turing-natural-language-generation
license: closed source
parameters: 530B

BLOOM

decoder-only architecture
https://huggingface.co/docs/transformers/model_doc/bloom
license: closed source
13 programming languages
trained on: 46 natural languages, 13 programming languages
parameters: 176B
architecture: auto-regressive model for next token prediction (similar to GPT3)

Online Transpilers

javainuse.com

GitHub topics

https://github.com/topics/transpiler
https://github.com/topics/source-to-source
https://github.com/topics/program-transformation
https://github.com/topics/metaprogramming
https://github.com/topics/term-rewriting
https://github.com/topics/refactoring-tools
https://github.com/topics/static-analysis

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