Showing 370 open source projects for "java open source"

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    GWI: On-demand Consumer Research

    For marketing agencies and media organizations requiring a solution to get consumer insights

    Need easy access to consumer insights? Our intuitive platform is the answer. Get the ultra-reliable research that brands and agencies need to stay ahead of changing consumer behavior.
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    The #1 solution for profitable resource management

    Designed to give Operations and Finance leaders the insight and foresight they need to achieve profitable delivery at scale.

    Unlike spreadsheets or clunky PSAs, Float offers a clear, centralized view to schedule teams, plan capacity, estimate work, and track margins in real-time so that you can keep your people and profits on track.
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  • 1
    ta4j

    ta4j

    A Java library for technical analysis

    Ta4j is an open-source Java library for technical analysis. It provides the basic components for the creation, evaluation, and execution of trading strategies. Ta4j is available on Maven Central. You can also download example code from the maven central repository. The wiki is the best place to start learning about ta4j. For more detailed questions, please use the issues tracker.
    Downloads: 50 This Week
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  • 2
    Sparrow Wallet

    Sparrow Wallet

    Desktop Bitcoin Wallet focused on security and privacy

    Sparrow Wallet is an open-source, desktop-focused Bitcoin wallet designed for users who value complete control, security, and privacy when managing their Bitcoin funds. It provides a rich graphical interface that exposes Bitcoin’s underlying UTXO model rather than hiding it behind abstractions, helping users understand every input, output, and fee involved in transactions.
    Downloads: 60 This Week
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  • 3
    Web3j

    Web3j

    Lightweight Java and Android library for integration with Ethereum

    ...Create projects to work with new or import existing decentralized apps in a single command with the Web3j CLI. Simple to use framework for automated integration testing against networks within your IDE. Web3j is 100% open source and maintained by Web3 Labs.
    Downloads: 6 This Week
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  • 4
    Bisq

    Bisq

    A decentralized bitcoin exchange network

    ...Every Bisq node is a Tor hidden service by default. Code is open-source, and project strategy is discussed openly on Keybase and GitHub. We've made all this sophistication simple, make your first trade in under 10 minutes! Decentralized governance for a decentralized exchange, built on top of Bitcoin.
    Downloads: 22 This Week
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  • Deliver trusted data with dbt Icon
    Deliver trusted data with dbt

    dbt Labs empowers data teams to build reliable, governed data pipelines—accelerating analytics and AI initiatives with speed and confidence.

    Data teams use dbt to codify business logic and make it accessible to the entire organization—for use in reporting, ML modeling, and operational workflows.
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  • 5
    Besu Ethereum Client

    Besu Ethereum Client

    An enterprise-grade Java-based, Apache 2.0 licensed Ethereum client

    You can use Besu to develop enterprise applications requiring secure, high-performance transaction processing in a private network. A private network is a network not connected to Ethereum Mainnet or an Ethereum testnet. Private networks typically use a different chain ID and proof of authority consensus (QBFT, IBFT 2.0, or Clique). You can also create a local development network using proof of work (Ethash). Instructions for how to get started with developing on the Besu codebase. Please...
    Downloads: 5 This Week
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  • 6
    XMRig

    XMRig

    RandomX, KawPow, CryptoNight, AstroBWT and GhostRider unified miner

    High performance, open-source, cross-platform RandomX, KawPow, CryptoNight, and AstroBWT CPU/GPU miner, RandomX benchmark, and stratum proxy. XMRig is a high-performance, open-source, cross-platform RandomX, KawPow, CryptoNight, and AstroBWT unified CPU/GPU miner and RandomX benchmark. Official binaries are available for Windows, Linux, macOS, and FreeBSD.
    Downloads: 183 This Week
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  • 7
    bitcoinj

    bitcoinj

    A library for working with Bitcoin

    bitcoinj is a library for working with the Bitcoin protocol. It can maintain a wallet, send/receive transactions without needing a local copy of Bitcoin Core and has many other advanced features. It's implemented in Java but can be used from any JVM compatible language, examples in Python and JavaScript are included. Highly optimized lightweight simplified payment verification (SPV) mode. In this mode, only a small part of the blockchain is downloaded, making bitcoin suitable for usage on...
    Downloads: 5 This Week
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  • 8
    Fedimint

    Fedimint

    Federated E-Cash Mint

    Fedimint is a modular open-source implementation of federated Chaumian ecash designed to enable community-controlled Bitcoin custody and privacy-enhanced payments. It allows groups of users to collectively manage Bitcoin in a trust-minimized manner while enabling fast, anonymous, and scalable transactions through blind signatures. Built with extensibility and modularity in mind, Fedimint aims to serve as the core of community custody systems like Fedi and future federated finance applications. ...
    Downloads: 106 This Week
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  • 9
    Nimbus Eth2

    Nimbus Eth2

    Nim implementation of the Ethereum Beacon Chain

    Nimbus-eth2 is a Nim implementation of the Ethereum Beacon Chain, designed to be efficient on resource-restricted devices. It plays a crucial role in Ethereum 2.0 infrastructure.
    Downloads: 56 This Week
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    PageDNA: Web-to-Print eCommerce Software

    eCommerce for Print, Signs and Fulfillment Trusted by In‑Plants and Commercial Print Leaders

    PageDNA enables successful eCommerce strategies for commercial print sales organizations, internal print shops, and brand owners. PageDNA’s online ordering platform increases print volume while decreasing touch costs for all stakeholders: clientele, print operations, and the organizations they support.
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  • 10
    Dash Core staging tree

    Dash Core staging tree

    Reinventing cryptocurrency

    ...Dash uses peer-to-peer technology to operate with no central authority, managing transactions and issuing money are carried out collectively by the network. Dash Core is the name of the open-source software which enables the use of this currency. Ready to start making everyday purchases with digital cash? DashDirect makes it fast & easy with savings every time you spend! Grab a coffee, buy a plane ticket, or pay your phone bill. Dash is growing and is accepted by new businesses every day. Experience cryptocurrency payments in an enhanced easy-to-use user experience and with social factors like username, contacts, and personalization. ...
    Downloads: 68 This Week
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  • 11
    Libplanet

    Libplanet

    Blockchain in C#/.NET for on-chain, decentralized gaming

    Libplanet is a .NET library for creating multiplayer online game in decentralized fashion, which means the whole gameplay occurs on a peer-to-peer network among equal nodes rather than an authorized central server. Under the hood, it incorporates many features (e.g., digital signature, BFT consensus, data replication) of a blockchain.
    Downloads: 79 This Week
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  • 12
    OneKey

    OneKey

    Secure, open source and community driven crypto wallet

    Secure, open source and community-driven crypto wallet runs on all platforms and trusted by millions. OneKey is your smartest choice to secure, buy, exchange and grow your crypto assets. Use OneKey App separately to store and use your crypto assets in a secure and convenient manner. Each user's assets are appropriately secured and stored locally.
    Downloads: 34 This Week
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  • 13
    Swarm Bee

    Swarm Bee

    Bee is a Swarm client implemented in Go

    Bee is a Swarm client implemented in Go. It’s the basic building block for the Swarm network: a private; decentralized; and self-sustaining network for permissionless publishing and access to your (application) data.There are two versioning schemes used in Bee that you should be aware of. The main Bee version does NOT follow strict Semantic Versioning. Bee hosts different peer-to-peer wire protocol implementations and individual protocol breaking changes would necessitate a bump in the major...
    Downloads: 74 This Week
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  • 14
    Trust Wallet Core

    Trust Wallet Core

    Cross-platform, cross-blockchain wallet library

    Trust Wallet Core is an open source, cross-platform, mobile-focused library implementing low-level cryptographic wallet functionality for a high number of blockchains. It is a core part of the popular Trust Wallet, and some other projects. Most of the code is C++ with a set of strict C interfaces, and idiomatic interfaces for supported languages: Swift for iOS and Java for Android.
    Downloads: 6 This Week
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  • 15
    Echidna

    Echidna

    Ethereum smart contract fuzzer

    Echidna is a weird creature that eats bugs and is highly electrosensitive (with apologies to Jacob Stanley) More seriously, Echidna is a Haskell program designed for fuzzing/property-based testing of Ethereum smarts contracts. It uses sophisticated grammar-based fuzzing campaigns based on a contract ABI to falsify user-defined predicates or Solidity assertions. We designed Echidna with modularity in mind, so it can be easily extended to include new mutations or test specific contracts in...
    Downloads: 61 This Week
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  • 16
    RoboSats

    RoboSats

    A simple and private bitcoin exchange

    RoboSats is a privacy-preserving, peer-to-peer Bitcoin exchange that allows users to buy and sell Bitcoin using Lightning Network payments without requiring identity verification. It uses Tor by default and leverages a simple robot-based user interface to facilitate one-time trades between anonymous users. Each trade session is isolated, and no long-term accounts or KYC are needed, making RoboSats one of the most private Bitcoin P2P tools available. Designed with a strong focus on usability...
    Downloads: 51 This Week
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  • 17
    Solana

    Solana

    Web-scale blockchain for fast, secure, scalable, decentralized apps

    Solana is the fastest blockchain in the world and the fastest-growing ecosystem in crypto, with thousands of projects spanning DeFi, NFTs, Web3 and more. Integrate once and never worry about scaling again. Solana ensures composability between ecosystem projects by maintaining a single global state as the network scales. Never deal with fragmented Layer 2 systems or sharded chains. Solana's scalability ensures transactions remain less than $0.01 for both developers and users. Solana is all...
    Downloads: 54 This Week
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  • 18
    XMRig Proxy

    XMRig Proxy

    Monero (XMR) Stratum protocol proxy

    Extremely high-performance CryptoNote stratum protocol proxy. Works with any pool and any miner with nicehash support. Can easily handle over 100K connections on a cheap $5 (1024 MB) virtual machine. Reduce the number of pool connections up to 256 times, 100K workers become just 391 workers on the pool side. Written on C++/libuv same as XMRig miner.
    Downloads: 31 This Week
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  • 19
    Nethermind

    Nethermind

    A robust execution client for Ethereum node operators.

    Nethermind is a high-performance, highly configurable Ethereum execution client built on .NET and designed for professional node operators. It provides fast synchronization, reliable JSON-RPC access, and support for major consensus mechanisms including PoS, Ethash, Clique, and AuRa. With features like Grafana dashboards and enterprise-grade logging, Nethermind makes monitoring and maintaining healthy nodes straightforward. Its architecture emphasizes speed and resilience, synchronizing to...
    Downloads: 30 This Week
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  • 20
    Cronos PoS Chain

    Cronos PoS Chain

    Croeseid Testnet and beyond development

    Cronos PoS Chain is a public, open source, and permissionless blockchain, a fully decentralized network with high speed and low fees, designed to be a public good that helps drive mass adoption of blockchain technology through use cases like Payments, DeFi, and NFTs.
    Downloads: 14 This Week
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  • 21
    Binance Trading Bot

    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...
    Downloads: 43 This Week
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  • 22
    Solidity plugin for IntelliJ

    Solidity plugin for IntelliJ

    Solidity plugin for IntelliJ

    Solidity plugin for IntelliJ. You can support the development by sponsoring the plugin on Github. Supporting the plugin with crypto through the Gitcoin grant. Please attach the screenshot for every issue if possible. It will make the issue much clearer and easier to understand.
    Downloads: 14 This Week
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  • 23
    Bitcoin ABC

    Bitcoin ABC

    This a mirror of the official Bitcoin-ABC repository

    ...It uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. eCash is a descendant of Bitcoin. Bitcoin ABC is the name of open-source software which enables the use of eCash. It is a fork of the Bitcoin Core software project.
    Downloads: 16 This Week
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  • 24
    Ninjabot

    Ninjabot

    A fast cryptocurrency platform for trading bot in Go

    A fast cryptocurrency trading bot framework implemented in Go. Ninjabot permits users to create and test custom strategies for spot markets. Ninjabot is an open-source platform that provides tools to implement custom strategies and backtests for trading cryptocurrencies in Go. Ninjabot CLI provides utilities commands to support backtesting and bot development. Currently, we only support Binance exchange. If you want to include support for other exchanges, you need to implement a new struct that implements the interface Exchange. ...
    Downloads: 18 This Week
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  • 25
    vyper

    vyper

    Pythonic Smart Contract Language for the EVM

    See Installing Vyper to install vyper. See Tools and Resources for an additional list of framework and tools with vyper support. See Documentation for the documentation and overall design goals of the Vyper language. See Learn.Vyperlang.org for learning Vyper by building a Pokémon game. See try.vyperlang.org to use Vyper in a hosted jupyter environment! There is also an online compiler available you can use to experiment with the language and compile to bytecode and/or IR. While the vyper...
    Downloads: 17 This Week
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