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Dev tools · alternatives · 2026

24 alternatives to A tamper-proof JavaScript data ledger

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

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A tamper-proof JavaScript data ledger launched in 2021; newer entries below may have overtaken it.

  1. 1TF

    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
    hat.sh▲212

    Free, fast, secure and serverless file encryption

    2019 · hat.sh · its alternatives →

  3. 3

    Keep your JavaScript code secure and compliant with Sandworm

    2023 · sandworm.dev · its alternatives →

  4. 4
    Sandworm▲293

    Keep your JavaScript code secure and compliant with Sandworm

    2023 · sandworm.dev · its alternatives →

  5. 5

    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 →

  6. 6

    JavaScript object validation for browsers + node. Contribute to paypal/legalize.js development by creating an account on GitHub.

    2015 · github.com · its alternatives →

  7. 7

    Prove that you said things before anyone else

    Jun 2026 · yousaidthat.org · its alternatives →

  8. 8VI
  9. 9

    Parser Building Toolkit for JavaScript. Contribute to Chevrotain/chevrotain development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  10. 10

    :ledger: the bare-bones i18n library used by yargs - yargs/y18n

    2015 · github.com · its alternatives →

  11. 11TP
  12. 12
  13. 13

    Secure, Verifiable Proof of IP Ownership in Seconds

    2025 · its alternatives →

  14. 14

    Keep your JavaScript code secure and compliant with Sandworm - Sandworm

    2022 · github.com · its alternatives →

  15. 15

    Anchor your digital assets to the Blockchain of your choice

    2020 · its alternatives →

  16. 16

    Protect Your JavaScript Code Like Never Before

    2025 · obfuscatorjs-seven.online · its alternatives →

  17. 17

    A Bitcoin Protocol Parser in Elixir/OTP. Contribute to jaesharp/bitcoin-ex development by creating an account on GitHub.

    2015 · github.com · its alternatives →

  18. 18

    :hammer: Asynchronous JavaScript Data Modelling and Validation - psvet/obey

    2016 · github.com · its alternatives →

  19. 19

    A powerful JavaScript Obfuscator with VM obfuscation

    Dec 2025 · obfuscator.io · its alternatives →

  20. 20

    An implementation of ECMA-262 in JavaScript. Contribute to engine262/engine262 development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  21. 21

    Immutable Identity and Data Verification on Bitcoin

    2024 · play.google.com · its alternatives →

  22. 22

    Secure PDF signatures with blockchain. Fast & reliable.

    2025 · signyourpdf.net · its alternatives →

  23. 23

    Blockchain based cryptocurrency proof-of-concept built with Elixir. Feedback welcome - coincoin/apps/blockchain/docs/difficulty.md at master · robinmonjo/coincoin

    2017 · github.com · its alternatives →

  24. 24

    From tx-hash to PDF proof — instantly.

    Nov 2025 · app.transactproof.com · its alternatives →

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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 →