Dev tools · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Transcrypt Python to JavaScript compiler can now generate native JavaScript components launched in 2018; newer entries below may have overtaken it.

1. 1TF
   Transcrypt – Fast, small Python 3.5 to JavaScript transpiler▲121

   The Transcrypt Python to JavaScript compiler makes it possible to program lean and fast browser applications in Python. Transcrypt applications can use any JavaScript library and can also run on top of Node.js or be used in combination with Django.

   2016 · transcrypt.org · its alternatives →

2. 2
   Execute JavaScript in a WebAssembly QuickJS sandbox▲206

   This TypeScript package allows you to safely execute JavaScript code within a WebAssembly sandbox using the QuickJS engine. Perfect for isolating and running untrusted code securely, it leverages the lightweight and fast QuickJS engine compiled to WebAssembly, providing a robust environment for code execution. Features - *Security*: Run untrusted JavaScript code in a safe, isolated environment. - *File System*: Can mount a virtual file system - *Custom Node Modules*: Custom node modules are mountable - *Fetch Client*: Can provide a fetch client to make http(s) calls - *Test-Runner*: Includes…

   2024 · github.com · its alternatives →

3. 3
   DuoCode▲73

   C#-to-JavaScript compiler

   2015 · duoco.de · its alternatives →

4. 4CT
   C#-to-JavaScript compiler powered by Microsoft Roslyn▲155

   2015 · duoco.de · its alternatives →

5. 5
   Auto-generate vanilla JavaScript alternatives for jQuery methods▲137

   Automatically finds jQuery methods from existing projects and generates vanilla js alternatives. - sachinchoolur/jquery-to-javascript-converter

   2021 · github.com · its alternatives →

6. 6
   An experimental Python to C#/Go/Ruby/JS transpiler▲14

   a restricted python to javascript / c# / go / ruby compiler - pseudo-lang/pseudo-python

   2016 · github.com · its alternatives →

7. 7
   Cryptbin▲67

   Create encrypted pastes faster and easier than ever

   2014 · cryptbin.com · its alternatives →

8. 8
   A Python native engine for web development▲24

   A Pythonic wraparound of HTML/CSS/JS. Contribute to BrainStormYourWayIn/sierra development by creating an account on GitHub.

   2021 · github.com · its alternatives →

9. 9AC
   a compiler from Python syntax to JavaScript syntax (like CoffeeScript)▲32

   2010 · pyxc.org · its alternatives →

10. 10AA
    Awl, a toy Lisp language written in C and transpiled to JavaScript▲8

    2014 · skepsi.me · its alternatives →

11. 11
    A better deep cloning for JavaScript objects▲5

    2014 · github.com · its alternatives →

12. 12AC
    A CPython Library for Runtime Bytecode Transformations▲5

    2016 · codetransformer.readthedocs.org · its alternatives →

13. 13
    A TypeScript library for generating crypto tax reports▲6

    A configurable and expandable tax report generator for crypto assets 🚀 - CryptoTaxTools/crypto-tax-report

    2020 · github.com · its alternatives →

14. 14OS
    Open-source, MIT JavaScript crypto library behind Skiff Mail▲8

    2023 · npmjs.com · its alternatives →

15. 15AS
    A smart Django/Node code generator written in Haskell▲7

    2021 · app.imagine.ai · its alternatives →

16. 16ET
    Encrypt text into url using Javascript on browser▲10

    2012 · boxuptext.com · its alternatives →

17. 17PF
    PubStorm – Free CLI-based static web hosting with Let's Encrypt support▲9

    2016 · pubstorm.com · its alternatives →

18. 18ST
    Secure Typeform and Jotform Replacement – at lower cost▲5

    2020 · globalpatron.com · its alternatives →

19. 19
    I made a tool to migrate from CommonJS to ESM▲12

    Transforms CommonJS projects into ESM. Contribute to bennycode/ts2esm development by creating an account on GitHub.

    2023 · github.com · its alternatives →

20. 20
    jducers: A js transducers-like implementation using generators and es8▲2

    javascript

    2018 · github.com · its alternatives →

21. 21
    A tamper-proof JavaScript data ledger▲6

    A tamper-proof Javascript data ledger. Contribute to ternent/ledger development by creating an account on GitHub.

    2021 · github.com · its alternatives →

22. 22
    PyBV – A Python Implementation of the BV Homomorphic Encryption Scheme▲9

    DEPRECATED- see https://github.com/OpenMined/OpenMined or https://github.com/OpenMined/PySyft - iamtrask/PyBV

    2017 · github.com · its alternatives →

23. 23
    Professional JavaScript Obfuscator▲7

    Protect Your JavaScript Code Like Never Before

    2025 · obfuscatorjs-seven.online · its alternatives →

24. 24
    Hypervault – file encryption app in an HTML file▲8

    2015 · hypervault.github.io · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →