Open Source JavaScript Blockchain Software
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JavaScript Blockchain Software
View 1049 business solutionsBrowse free open source JavaScript Blockchain Software and projects below. Use the toggles on the left to filter open source JavaScript Blockchain Software by OS, license, language, programming language, and project status.
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Ganache
Personal blockchain for Ethereum development
Quickly fire up a personal Ethereum blockchain which you can use to run tests, execute commands, and inspect state while controlling how the chain operates. Quickly see the current status of all accounts, including their addresses, private keys, transactions and balances. See the log output of Ganache’s internal blockchain, including responses and other vital debugging information. Configure advanced mining with a single click, setting block times to best suit your development needs. Examine all blocks and transactions to gain insight about what’s happening under the hood. Byzantium comes standard, giving you the latest Ethereum features needed for modern app development. Each platform has an associated npm run configuration to help you build on each platform more easily. Because each platform has different (but similar) build processes, they require different configurations. -
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MetaMask Browser Extension
The MetaMask browser extension enables browsing Ethereum blockchain
A crypto wallet & gateway to blockchain apps. Start exploring blockchain applications in seconds. Trusted by over 30 million users worldwide. Available as a browser extension and as a mobile app, MetaMask equips you with a key vault, secure login, token wallet, and token exchange—everything you need to manage your digital assets. MetaMask provides the simplest yet most secure way to connect to blockchain-based applications. You are always in control when interacting on the new decentralized web. MetaMask generates passwords and keys on your device, so only you have access to your accounts and data. You always choose what to share and what to keep private. MetaMask provides an essential utility for blockchain newcomers, token traders, crypto gamers, and developers. Over a million downloads and counting! -
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Binance Trading Bot
Automated Binance trading bot, trade multiple cryptocurrencies
Automated Binance trading bot. Trade multiple cryptocurrencies. Buy low/sell high with Grid Trading. Integrated with TradingView technical analysis. This bot is using the concept of trailing buy/sell order which allows following the price fall/rise. Trailing Stop Orders About Trailing Stop Orders Concept you can find at Binance Official document. Place orders at a fixed value or percentage when the price changes. Using this feature you can buy at the lowest possible price when buying down and sell at the highest possible price when selling up. The bot supports multiple buy/sell orders based on the configuration. The bot is using MongoDB to provide a persistence database. However, it does not use the latest MongoDB to support Raspberry Pi 32bit. Used MongoDB version is 3.2.20, which is provided by apcheamitru. The bot is tested/working with Linux and Raspberry Pi 4 32bit. Other platforms are not tested. -
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Coin Wallet
Coin Wallet is a non-custodial crypto wallet for Bitcoin
Coin Wallet is a non-custodial multicurrency wallet for multiple platforms. A secure, user-friendly cryptocurrency wallet focused on providing essential features without complicated setup. -
Secure remote access solution to your private network, in the cloud or on-prem.OpenVPN is here to bring simple, flexible, and cost-effective secure remote access to companies of all sizes, regardless of where their resources are located.
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Binance Triangle Arbitrage
Detect in-market cryptocurrency arbitrage
This app monitors the Binance cryptocurrency exchange in search of triangle arbitrage opportunities. The HUD is the chart displayed above. It is repainted after each calculation cycle to show snapshots of currently detected arbitrage opportunities. To disable the HUD, set HUD.ENABLED to false. Three symbols related by exchange rates are involved in the triangle arbitrage. Percent profit or loss from executing the triangle arbitrage. This includes trading fees specified via EXECUTION.FEE config. All configuration is managed inside the /config directory. To setup your configuration for the first time, duplicate the config.json.example file and remove the ".example" extension. This process must be done before deploying the app for the first time and redone after each major version update where the configuration has changed. -
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BlueWallet
Bitcoin thin client for iOS & Android. Built with React Native
Easily connect to your hardware wallet and manage your cold storage. The best security is available on the Bitcoin protocol. Create wallets with multiple keys. Unfairly cheap and blazing fast transactions on Bitcoin. Get notified of all transactions you are sending or receiving. download bitcoin wallet for iOS. Create multiple storage or fake ones in case of forced disclosure. Choose your fees when sending. Easily bump, cancel or batch transactions. BlueWallet was forged in the ashes of the 2017 fork wars, in order to bring a powerful and Bitcoin-only wallet for the community. Please refer to the engines field in package.json file for the minimum required versions of Node and npm. It is preferred that you use an even-numbered version of Node as these are LTS versions. You will now need to either connect an Android device to your computer or run an emulated Android device using AVD Manager which comes shipped with Android Studio. -
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Ledger Live
Ledger Live (Desktop)
Ledger Live is a new generation wallet desktop application providing a unique interface to maintain multiple cryptocurrencies for your Ledger Nano S / Blue. Manage your device, create accounts, and receive and send crypto assets. Ledger Live is a hybrid desktop application built with Electron, React, Redux, RxJS,.. and highly optimized with a ledger-core C++ library to deal with blockchains (sync, broadcast,..) via ledger-core-node-bindings. It communicates to Ledger hardware wallet devices (Nano X / Nano S / Blue) to verify address and sign transactions with ledgerjs. Some logic is shared with live-common. Ledger Live releases are signed. The automatic update mechanism makes use of the signature to verify that each subsequent update is authentic. Buy crypto directly and securely with our partners through Ledger Live. We support Bitcoin, Ethereum, XRP, and lots more. Safely send and receive 1,800+ coins and tokens directly with your smartphone or computer using Ledger Live. -
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Superalgos
Free, open-source crypto trading bot, automated bitcoin trading
Free, open-source crypto trading bot, automated bitcoin/cryptocurrency trading software, algorithmic trading bots. Visually design your crypto trading bot, leveraging an integrated charting system, data-mining, backtesting, paper trading, and multi-server crypto bot deployments. Superalgos is not just another open-source project. We are an open and welcoming community nurtured and incentivized with the project's native Superalgos (SA) Token, building an open trading intelligence network. You will notice the difference as soon as you join the Telegram Community Group or the new Discord Server! Superalgos is an ever-growing ecosystem of tools and applications. Once you install and launch the app, a series of interactive tutorials take you by the hand and walk you all around the system while you learn the basic skills required to use the interface, mine data, backtest strategies, and even run a live trading session. -
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ZeroNet
Decentralized websites using Bitcoin crypto and BitTorrent network
Open, free and uncensorable websites, using Bitcoin cryptography and BitTorrent network. Your content distributed directly to other visitors without any central server. Uncensored: It's nowhere because it's everywhere! No hosting costs: Sites are served by visitors. Always accessible: No single point of failure. No configuration needed: Download, unpack and start using it. Decentralized domains using Namecoin cryptocurrency. Your account is protected by the same cryptography as your Bitcoin wallet. Page response time is not limited by your connection speed. Real-time updated, multi-user websites. Supports any modern browser on Windows, Linux or Mac platforms. You can easily hide your IP address using the Tor network. Browse the sites you're seeding even if your internet connection is down. Developed by the community for the community. We believe in open, free, and uncensored network and communication. -
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web3.js
Ethereum JavaScript API
web3.js is the Ethereum JavaScript API that connects to the Generic JSON-RPC spec. It is composed of a selection of libraries that make it possible to interact with a local or remote ethereum node, using a HTTP or IPC connection. The node may be local, hosted by the DApp provider, or a public gateway such as Infura, which operates free Ethereum access points. It is necessary to run a local or remote Ethereum node to be able to use this library. web3.js is directly usable on web technology and is also commonly used on the server side in Node.js applications and in Electron-based desktop applications. -
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OpenZeppelin Contracts
OpenZeppelin Contracts is a library for secure smart contracts
A library for secure smart contract development. Build on a solid foundation of community-vetted code. OpenZeppelin Contracts uses semantic versioning to communicate backward compatibility of its API and storage layout. To keep your system secure, you should always use the installed code as-is, and neither copy-paste it from online sources nor modify it yourself. The library is designed so that only the contracts and functions you use are deployed, so you don't need to worry about it needlessly increasing gas costs. Reduce the risk of vulnerabilities in your applications by using standard, tested, community-reviewed code. -
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free crypto exchange script
download crypto exchange with source code free
Best White Label Crypto Exchange Script | Launch Your Own Exchange Platform Start your own cryptocurrency exchange with our secure and scalable script. Download full crypto exchange source code and learn more about our solution. It is offered with full source code. Our centralized exchange solution enables trustful trading, liquidity pools, and seamless token listing. Built on blockchain, php, mysql, our script ensures high performance, scalability, and customization. Ideal for entrepreneurs, developers, and crypto enthusiasts looking to start their own exchange. - cryptocurrency exchange script - decentralized exchange solution - trustful trading - liquidity pools - token listing - blockchain platform -
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ADAMANT Messenger Progressive Web App
ADAMANT decentralized Messenger, progressive web application
A messaging application client for ADAMANT Blockchain. ADAMANT is a decentralized anonymous messenger based on the blockchain system. It’s independent of any governments or corporations, and even developers due to the distributed network infrastructure that contains an open-source code. The ADAMANT blockchain system belongs to its users. Nobody can control, block, deactivate, restrict or censor accounts. Users take full responsibility for their content, messages, media, and goals and intentions of using the messenger. Privacy is the main concept of ADAMANT, neither phone numbers nor emails are required. Apps have no access to the contact list or geotags, IPs are hidden from chatters and paranoids can use Tor app. All the messages are encrypted with the Diffie-Hellman Curve25519, Salsa20, Poly1305 algorithms and signed by SHA-256 + Ed25519 EdDSA. Private keys are never transferred to the network. -
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Monero Webminer
Javascript monero webminer
Html & Js code that allows Mining of XMR (Monero) on browsers. -
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Zenbot
A command-line cryptocurrency trading bot
Zenbot is a command-line cryptocurrency trading bot using Node.js and MongoDB. Fully-automated technical-analysis-based trading approach. Full support for Binance, Bitfinex, Bitstamp, Bittrex, CEX.IO, GDAX, Gemini, HitBTC, Kraken, Poloniexand TheRockTrading, work on further exchange support is ongoing. Plugin architecture for implementing exchange support, or writing new strategies. Simulator for backtesting strategies against historical data. "Paper" trading mode, operates on a simulated balance while watching the live market. Configurable sell stops, buy stops, and (trailing) profit stops. Flexible sampling period and trade frequency - averages 1-2 trades/day with 1h period, 15-50/day with 5m period. Crypto-currency is still an experiment, and therefore so is Zenbot. Meaning, both may fail at any time. Running a bot, and trading in general requires careful study of the risks and parameters involved. A wrong setting can cause you a major loss. -
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Crypto Arbitrage
A cryptocurrency arbitrage opportunity calculator
A cryptocurrency arbitrage opportunity calculator and trading bot. Over 800 currencies and 50 markets. In short, it collects JSON from multiple different cryptocurrency markets, goes through the results, and finds the highest and lowest price for each coin. The script will find the highest price (chbtc.com), and lowest price (Bittrex), and divide the two: 51.8/38.23 = ~1.35 (~35% profit margin) and then push these results to the browser. It will also find the next highest market pairs, e.g. chbtc / jubi is the second-highest pair and chbtc/Bittrex the third, jubi/Bittrex the fourth and so on until every possible combination has been computed. Currently you will have to add a market object with the correct settings in the array markets, situated in the settings.js file. I am updating the project every day and this will change soon. You can temporarily stop loading a market from the frontend, or remove the market by deleting the object in settings.js. -
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Embark
Framework for serverless Decentralized Applications using Ethereum
Embark is a platform that enables easy development and deployment of decentralized applications. Build, test, and deploy your Smart Contracts without the hassle. Embark takes care of the groundwork, watches for changes, and redeploys your application when needed. Testing shouldn't be an afterthought. Embark makes debugging and testing first-class citizens of your development workflow. Pick and choose which features, plugins and tools you want to integrate with. Embark is built with modularity in mind. Gives an overview of all processes controlled by Embark. It also comes with an interactive console and predictive commands. Cockpit's explorer lets you easily review any transactions, Smart Contracts, and accounts. With Cockpit you can iteratively and selectively deploy your Smart Contracts, removing headaches associated with complex applications. Edit your source files from right within Cockpit for quick and easy updates. -
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Lightning
An easy-to-use cross-platform Lightning wallet
This is still early technology and there’s a risk of losing all of your funds. We recommend not putting in more money than you are willing to lose. Pocket Money, prebuilt and signed releases with auto-update (recommended for most users). Tin Foil Hat, if you'd rather build it yourself and do it without auto-updates, follow the instructions. To build the mobile app locally, see the README in the /mobile directory for instructions. Running in development mode can allow you to run in full node mode instead of the default neutrino mode, and will also allow you to run in simnet node for testing. The app will use its own lnd data/lnd dir and does not share state with other lnd installations on your system. See setup local cluster on how to set up your simnet cluster for development. -
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MyEtherWallet
MyEtherWallet to interact with the Ethereum blockchain
MEW (MyEtherWallet) is a free, client-side interface helping you interact with the Ethereum blockchain. Our easy-to-use, open-source platform allows you to generate wallets, interact with smart contracts, and so much more. Easily access all you favorite apps across Ethereum and Polkadot chains, buy crypto, swap tokens, and manage your NFTs. Welcome to the multichain future. ETH Blocks is an NFT series representing mined Ethereum blocks and their properties. Whether it's a special block number, the block of your first transaction, or a block that contains a transaction with a special message. Own a part of history with ETH Blocks by MEW. Access the Ethereum blockchain's original and most-trusted wallet, now with a host of new features all contained in an elegant and friendly interface. -
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Nimiq Blockchain
JavaScript implementation of the Nimiq protocol
Nimiq is a unique open-source payment system. It empowers all humans with decentralized but easy payments. One-click creates a node in your browser. Send and receive directly to the blockchain and be truly independent. A simple, secure and censorship-resistant payment protocol, native to the web. Nimiq is a decentralized, censorship-resistant payment protocol native to the web, with its own diverse ecosystem of apps. The native NIM token is transacted within Nimiq as a store and transfer of value: it acts as digital cash. The cutting-edge, browser-first blockchain approach means that users directly connect to the blockchain with nothing more than a browser. Therefore anyone with an up-to-date browser can join the payment network directly, pay and accept payments without having to install software or rely on unnecessary intermediaries. This gives Nimiq its ‘it just works’ characteristic, which is further strengthened by an ethos of simplicity and ease of use. -
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Aragon Client
Create and manage decentralized organizations on Ethereum
Trusted by over 1500 organizations, securing more than $300MM in funds. Create and manage decentralized organizations on Ethereum. Read the User Guide first, if you have any questions as a user. If you'd like to develop an Aragon app, please visit the Aragon Developer Portal. Please report any issues and feedback in the support channel on Discord. For technical stuff, use this project's issues or join the technical conversation in the hacker hangout channel on Discord. To learn more about contributing to the Aragon client itself, please check the contributing guide. For an overview of what changed with each release, check the releases. Install with yarn and launch the app with yarn start. By default, the app is configured to connect to the Ethereum Goerli testnet. The Aragon client is automatically deployed to IPFS with each new commit to master, via Fleek. The latest builds are available at client.aragon.org or through an IPFS gateway. -
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BTC RPC Explorer
Database-free, self-hosted Bitcoin explorer, via RPC to Bitcoin Core
This is a self-hosted explorer for the Bitcoin blockchain, driven by RPC calls to your own Bitcoin node. It is easy to run and can be connected to other tools (like Electrum servers) to achieve a full-featured explorer. Whatever reasons you may have for running a full node (trustlessness, technical curiosity, supporting the network, etc) it's valuable to appreciate the fullness of your node. With this explorer, you can explore not just the blockchain database, but also explore all of the functional capabilities of your own node. Optional transaction history for addresses by querying from Electrum-protocol servers (e.g. Electrs, ElectrumX), blockchain, blockchair or blockcypher. Mempool summary, with fee, size, and age breakdowns. See raw JSON content from bitcoind used to generate most pages. Analysis tools for viewing stats on blocks, transactions, and miner activity. -
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Bitcore
A full stack for bitcoin and blockchain-based applications
Infrastructure to build Bitcoin and blockchain-based applications for the next generation of financial technology. Payment channels (sometimes referred as micropayment channels) are a type of smart contracts that allow rapidly adjusting bitcoin transactions. This can be used to do trustless simultaneous payments with a service provider without the need of an intermediary, and some other applications. -
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DePay
JavaScript library to integrate various web3 crypto wallets
DePay simplifies and improves Web3 Payments with the power of DeFi. Accept any token with on-the-fly conversion. You want to accept and send payments worldwide, peer-to-peer in a decentralized, censorship- and fraud-resistant way? We are providing innovative, blockchain-based solutions to do so. It's easy to integrate and easy to use. Perform and manage Web3 Payments today. Everything starts with a simple integration. We worked hard so that you don't have to spend months implementing Web3 Payments on your own. Discover how simple decentralized Web3 Payments can be. No boundaries, no signup. A few lines of code will allow you to accept Web3 Payments peer-to-peer. -
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HSD
Handshake Daemon & full node
Handshake is a decentralized, permissionless naming protocol where every peer is validating and in charge of managing the root DNS naming zone with the goal of creating an alternative to existing Certificate Authorities and naming systems. Names on the internet (top level domains, social networking handles, etc.) ultimately rely upon centralized actors with full control over a system that are relied upon to be honest, as they are vulnerable to hacking, censorship, and corruption. Handshake aims to experiment with new ways the internet can be more secure, resilient, and socially useful with a peer-to-peer system validated by the network's participants. Handshake is an experiment that seeks to explore those new ways in which the necessary tools to build a more decentralized internet. Services on the internet have become more centralized beginning in the 1990s, but do not fulfill the original decentralized vision of the internet.
