JavaScript Web3

Open-source JavaScript projects categorized as Web3

Top 23 JavaScript Web3 Projects

  1. gun

    An open source cybersecurity protocol for syncing decentralized graph data.

  2. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo
  3. melonJS

    a fresh, modern & lightweight HTML5 game engine

  4. project_web3.0

    This is a code repository for the corresponding video tutorial. In this video, we're going to build a Web 3.0 React Solidity Blockchain Application

  5. eattheblocks

    Source code for Eat The Blocks, a screencast for Ethereum Dapp Developers

  6. trystero

    ✨🤝✨ Build instant multiplayer webapps, no server required — Magic WebRTC matchmaking over BitTorrent, Nostr, MQTT, IPFS, Supabase, and Firebase

    Project mention: Show HN: Open-source P2P file transfer | news.ycombinator.com | 2025-05-31

    Connecting browsers directly is a fascinting area to explore in web development. It always goes a little haywire when punching thru NAT and I wish there was more research into what the best methods are.

    https://github.com/dmotz/trystero is a one tool I've used to build these kinds of apps.

  7. alphabiz

    Web3 YouTube Alternative - fully decentralized media platform and blockchain-based marketplace

  8. frame

    System-wide Web3 for macOS, Windows and Linux

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
  10. eth-crypto

    Cryptographic javascript-functions for ethereum and tutorials to use them with web3js and solidity

  11. web3-is-going-great

    A timeline of some of the greatest hits in cryptocurrencies, NFTs, and other web3 projects since the beginning of 2021

    Project mention: Era of U.S. dollar may be winding down | news.ycombinator.com | 2025-05-09
  12. awesome-web3

    A curated list of awesome Web3 resources, libraries, tools and more.

    Project mention: Top Github repositories for 10+ programming languages | dev.to | 2024-07-16

    Awesome web3 Ethereum Book

  13. etherchain-light

    Lightweight Ethereum blockchain explorer

  14. Goopt

    🔍 Search Engine for a Procedural Simulation of the Web with GPT-3.

  15. defi-minimal

    This repo is dedicated to making minimal repos of existing defi primatives.

  16. ztm

    ZTM (Zero Trust Mesh) is a privacy-first open-source decentralized end-to-end encrypted software defined network, based on HTTP/2 tunnels. Experience boundless connectivity and mesh the globe!

  17. eth-sdk

    Type-safe, lightweight SDKs for Ethereum smart contracts

  18. web3-vs-ethers

    A basic cheatsheet of Web3.js vs Ethers (along w/ example apps!)

  19. TokenScript

    TokenScript schema, specs and paper

  20. flux

    Flux, Your Gateway to a Decentralized World. https://home.runonflux.io https://api.runonflux.io https://docs.runonflux.io https://source.runonflux.io https://wiki.runonflux.io (by RunOnFlux)

  21. dagger.js

    Simple library to connect with dagger server and manage subscriptions for Ethereum Blockchain.

  22. weavedb

    Decentralized Database as a Protocol

    Project mention: Arweave Japan Launch | dev.to | 2025-06-01

    WeaveDB A hyperscalable decentralized NoSQL database utilizing AO and zero-knowledge proofs. https://github.com/weavedb/weavedb

  23. docs

    Unleash Bitcoin's full potential with decentralized apps and smart contracts. The documentation covers key aspects of the Stacks network and technology and provides tutorials and other helpful content for developers. (by stacks-network)

  24. HSTP

    New Internet

  25. origin-dollar

    OUSD and OETH are stablecoins that passively accrue yield while you are holding it

    Project mention: 03.DEFI ATTACKS - Falsche Slippagekalkulation | dev.to | 2024-10-02
  26. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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JavaScript Web3 related posts

  • Era of U.S. dollar may be winding down

    1 project | news.ycombinator.com | 9 May 2025
  • zkJSON Litepaper v1.0

    5 projects | dev.to | 9 May 2025
  • Show HN: Everything the Bitcoiners Were Promising

    1 project | news.ycombinator.com | 29 Aug 2024
  • How to build your first zkApp with Mina Protocol

    1 project | dev.to | 27 Jun 2024
  • Show HN: A decentralised Web3 token and escrow contract platform

    1 project | news.ycombinator.com | 3 Mar 2024
  • Thoughts on additional income sources for NFT projects?

    1 project | /r/NFT | 6 Dec 2023
  • Show HN: LLM-Generated Wikipedia

    1 project | news.ycombinator.com | 9 Oct 2023
  • A note from our sponsor - InfluxDB
    www.influxdata.com | 23 Jun 2025
    InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →

Index

What are some of the best open-source Web3 projects in JavaScript? This list will help you:

# Project Stars
1 gun 18,463
2 melonJS 6,084
3 project_web3.0 4,181
4 eattheblocks 4,015
5 trystero 1,608
6 alphabiz 1,206
7 frame 1,132
8 eth-crypto 902
9 web3-is-going-great 806
10 awesome-web3 686
11 etherchain-light 661
12 Goopt 518
13 defi-minimal 482
14 ztm 436
15 eth-sdk 435
16 web3-vs-ethers 374
17 TokenScript 245
18 flux 242
19 dagger.js 221
20 weavedb 210
21 docs 161
22 HSTP 159
23 origin-dollar 140

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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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