Showing 4796 open source projects for "java"

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  • Respond 100x faster, more accurately, and improve your documentation Icon
    Respond 100x faster, more accurately, and improve your documentation

    Designed for forward-thinking security, sales, and compliance teams

    Slash response times for questionnaires, audits, and RFPs by up to 90%. OptiValue.ai automates the heavy lifting, freeing your team to focus on strategic priorities with intuitive tools for seamless review and validation.
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  • The most trusted software in construction Icon
    The most trusted software in construction

    HCSS is the gold standard software solution for winning, planning, and managing construction projects by connecting the office to the field.

    HCSS provides easy-to-use software built for construction companies that want to win more work, work smarter, and boost profits. For nearly 40 years, we've helped heavy civil contractors, infrastructure builders, and utility companies improve operations, from estimating and project management to field tracking, equipment maintenance, and safety. Tools like HeavyBid, HeavyJob, and HCSS Safety are built for the field and designed to work together, giving your team real-time visibility, tighter cost control, and better job outcomes. With 45+ accounting integrations and customizable APIs, HCSS fits seamlessly into your tech stack. We regularly update our software based on feedback from real crews, ensuring it fits the way your team works. Backed by award-winning 24/7/365 support and a proven implementation process, HCSS helps reduce risk, cut inefficiencies, and deliver fast ROI. If you're ready to grow your business and gain a competitive edge, HCSS is the partner that gets you there.
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  • 1
    Hazelcast

    Hazelcast

    Open-source distributed computation and storage platform

    Hazelcast is a streaming and memory-first application platform for fast, stateful, data-intensive workloads on-premises, at the edge or as a fully managed cloud service. Hazelcast is a distributed computation and storage platform for consistently low-latency querying, aggregation and stateful computation against event streams and traditional data sources. It allows you to quickly build resource-efficient, real-time applications. You can deploy it at any scale from small edge devices to a...
    Downloads: 5 This Week
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  • 2
    AGI (Android GPU Inspector)

    AGI (Android GPU Inspector)

    Android GPU Inspector

    Android GPU Inspector (AGI) is a desktop tool for profiling, tracing, and debugging graphics workloads running on Android devices. It helps developers analyze Vulkan and OpenGL ES applications at the system, frame, and draw-call levels to uncover GPU and CPU bottlenecks. AGI captures detailed performance counters, timelines, and pipeline state to reveal stalls, overdraw, shader hotspots, and inefficient resource usage. Its frame debugger lets you step through commands, inspect render targets...
    Downloads: 7 This Week
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  • 3
    Jimfs

    Jimfs

    An in-memory file system for Java 8+

    Jimfs is an in-memory file system for Java that fully implements the java.nio.file API introduced in Java 7 and enhanced in Java 8 and beyond. Developed by Google, it allows developers to create and manipulate file systems entirely in memory, making it ideal for testing, simulation, and temporary file operations without touching the actual disk. Jimfs supports most standard file operations, including file and directory creation, deletion, copying, symbolic and hard links, as well as stream-based file reading and writing. ...
    Downloads: 0 This Week
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  • 4
    IoTDB

    IoTDB

    Apache IoTDB

    Apache IoTDB (Database for Internet of Things) is an IoT native database with high performance for data management and analysis, deployable on the edge and the cloud. Due to its light-weight architecture, high performance and rich feature set together with its deep integration with Apache Hadoop, Spark and Flink, Apache IoTDB can meet the requirements of massive data storage, high-speed data ingestion and complex data analysis in the IoT industrial fields. In the scene of factories, there...
    Downloads: 10 This Week
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  • FusionAuth: Authentication and User Management Software Icon
    FusionAuth: Authentication and User Management Software

    Offer your users flexible authentication options, including passwords, passwordless, single sign-on (SSO), and multi-factor authentication (MFA).

    FusionAuth adds login, registration, SSO, MFA, and a bazillion other features to your app in days - not months.
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  • 5
    unidbg

    unidbg

    Allows you to emulate an Android native library

    Allows you to emulate an Android native library, and an experimental iOS emulation. This is an educational project to learn more about the ELF/MachO file format and ARM assembly. Emulation of the JNI Invocation API so JNI_OnLoad can be called. Support JavaVM, JNIEnv. Emulation of syscalls instruction. Support ARM32 and ARM64. Inline hook, thanks to Dobby. Android import hook, thanks to xHook. iOS fishhook and substrate and whale hook. unicorn backend support simple console debugger, gdb...
    Downloads: 5 This Week
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  • 6
    AndroidSDK

    AndroidSDK

    Full-fledged Android SDK Docker Image

    AndroidSDK is a Docker-based development environment that provides a complete, portable Android SDK setup for building, testing, and deploying Android applications in a consistent and reproducible way. Instead of installing and configuring the Android SDK locally, developers can run a preconfigured container that includes essential tools such as the SDK, build tools, Gradle, and Kotlin compiler. This approach solves common issues related to environment inconsistency, such as dependency...
    Downloads: 4 This Week
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  • 7
    Spring Security

    Spring Security

    Authentication and access-control framework

    ...It is the de-facto standard for securing Spring-based applications. Spring Security is a framework that focuses on providing both authentication and authorization to Java applications. Like all Spring projects, the real power of Spring Security is found in how easily it can be extended to meet custom requirements. Spring Security uses a Gradle-based build system. In the instructions, ./gradlew is invoked from the root of the source tree and serves as a cross-platform, self-contained bootstrap mechanism for the build. ...
    Downloads: 1 This Week
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  • 8
    Apache SkyWalking

    Apache SkyWalking

    Application Performance Monitoring System

    ...It is capable of monitoring, tracing and diagnosing distributed systems in cloud native architectures. Apache Skywalking supports the collection of telemetry data from a number of different sources and in different formats, such as Java, .NET Core, PHP, LUA agent and more. It also offers a solid core features set, which includes root cause analysis, service topology map analysis, performance optimization, and many more.
    Downloads: 1 This Week
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  • 9
    Apache RocketMQ

    Apache RocketMQ

    Distributed messaging and streaming platform with low latency

    ...Financial grade transactional message. Built-in fault tolerance and high availability configuration options base on DLedger. A variety of cross language clients, such as Java, C/C++, Python, Go. Pluggable transport protocols, such as TCP, SSL, AIO. Built-in message tracing capability, also support opentracing. Versatile big-data and streaming ecosytem integration. Message retroactivity by time or offset. Reliable FIFO and strict ordered messaging in the same queue. Efficient pull and push consumption model. ...
    Downloads: 2 This Week
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  • Secure User Management, Made Simple | Frontegg Icon
    Secure User Management, Made Simple | Frontegg

    Get 7,500 MAUs, 50 tenants, and 5 SSOs free – integrated into your app with just a few lines of code.

    Frontegg powers modern businesses with a user management platform that’s fast to deploy and built to scale. Embed SSO, multi-tenancy, and a customer-facing admin portal using robust SDKs and APIs – no complex setup required. Designed for the Product-Led Growth era, it simplifies setup, secures your users, and frees your team to innovate. From startups to enterprises, Frontegg delivers enterprise-grade tools at zero cost to start. Kick off today.
    Start for Free
  • 10
    MMKV for Android

    MMKV for Android

    An efficient, small mobile key-value storage framework

    MMKV for Android is an efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, and POSIX. Efficient. MMKV uses mmap to keep memory synced with file, and protobuf to encode/decode values, making the most of Android to achieve best performance. MMKV supports concurrent read-read and read-write access between processes. Easy-to-use. You can use MMKV as you go. All changes are saved immediately, no sync, no apply calls needed. MMKV contains...
    Downloads: 5 This Week
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  • 11
    Druid

    Druid

    Database connection pool written in Java

    Druid is an open-source database connection pool written in Java. Druid is able to provide an extensive number of powerful monitoring functionalities for database connection. Druid has been deployed to the maven central repository. Druid provides a monitoring feature that can be implemented through filter-chain. It also comes with WallFilter, that is based on the SQL semantic analysis to protect from SQL injection attacks.
    Downloads: 0 This Week
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  • 12
    Jaeger

    Jaeger

    Monitor and troubleshoot transactions in complex distributed systems

    ...Jaeger, inspired by Dapper and OpenZipkin, is a distributed tracing system released as open source by Uber Technologies. It is used for monitoring and troubleshooting microservices-based distributed systems. OpenTracing compatible data model and instrumentation libraries include Go, Java, Node, Python, C++ and C#. Jaeger uses consistent upfront sampling with individual per service/endpoint probabilities and it has multiple storage backends: Cassandra, Elasticsearch, memory.
    Downloads: 11 This Week
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  • 13
    Micrometer

    Micrometer

    App observability facade for the most popular observability tools

    Micrometer provides a simple facade over the instrumentation clients for the most popular observability systems, allowing you to instrument your JVM-based application code without vendor lock-in. Think SLF4J, but for observability. Micrometer provides vendor-neutral interfaces for timers, gauges, counters, distribution summaries, and long task timers with a dimensional data model that, when paired with a dimensional monitoring system, allows for efficient access to a particular named metric...
    Downloads: 5 This Week
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  • 14
    Eureka

    Eureka

    AWS Service registry for resilient mid-tier load balancing

    Eureka is a REST (Representational State Transfer) based service that is primarily used in the AWS cloud for locating services for the purpose of load balancing and failover of middle-tier servers. t Netflix, Eureka is used for the following purposes apart from playing a critical part in mid-tier load balancing. For aiding Netflix Asgard, an open source service which makes cloud deployments easier, in fast rollback of versions in case of problems avoiding the re-launch of 100's of instances...
    Downloads: 4 This Week
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  • 15
    LoggingInterceptor

    LoggingInterceptor

    An OkHttp interceptor which has pretty logger for request and response

    An OkHttp interceptor which has a pretty logger for request and response. +Mock support.
    Downloads: 0 This Week
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  • 16
    LakeSoul

    LakeSoul

    An end-to-end, realtime and cloud native Lakehouse framework

    LakeSoul is a high-performance, unified table storage framework for big data lakes, supporting both streaming and batch data in a single format. Built on top of Apache Spark and leveraging Apache Arrow and Parquet, LakeSoul provides ACID transactions, schema evolution, and time travel. It is designed for large-scale data lake architectures that require consistency, efficiency, and easy integration with modern data stacks.
    Downloads: 1 This Week
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  • 17
    Flogger

    Flogger

    A Fluent Logging API for Java

    Flogger is a structured logging API for Java that decouples how you log from where logs ultimately go, making it easy to change backends without rewriting application code. Instead of building messages eagerly, it uses lazy parameter evaluation so expensive string building only happens when a log statement is actually emitted. The API encourages structured key–value context and fine-grained rate limiting, which helps keep logs informative without flooding systems during high-traffic or error storms. ...
    Downloads: 0 This Week
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  • 18
    Kamon Telemetry

    Kamon Telemetry

    Distributed Tracing, Metrics and Context Propagation for applications

    Kamon Telemetry is a set of libraries for instrumenting applications running on the JVM. With Kamon Telemetry you can collect metrics, propagate context across threads and services, and get distributed traces automatically. The best way to get started is by following our installation guides and taking it from there. Have fun with Kamon. Monitor your backend applications, fix performance issues, and get alerted when problems happen. All without being a monitoring expert. Everybody starts...
    Downloads: 2 This Week
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  • 19
    S3Proxy

    S3Proxy

    S3Proxy implements the S3 API and proxies requests

    ...Translation from S3 to Backblaze B2, EMC Atmos, Google Cloud, Microsoft Azure, and OpenStack Swift. Testing without Amazon by using the local filesystem. Extension via middleware. Embedding into Java applications. Docker Hub hosts a Docker image and has instructions on how to run it. Users can download releases from GitHub. Developers can build the project by running mvn package which produces a binary at target/s3proxy. S3Proxy requires Java 8 or newer to run. Configure S3Proxy via a properties file. An example using the local file system as the storage backend with anonymous access. ...
    Downloads: 0 This Week
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  • 20
    Spring Cloud Alibaba

    Spring Cloud Alibaba

    One-stop solution for application development for Alibaba middleware

    Spring Cloud Alibaba provides a one-stop solution for distributed application development. It contains all the components required to develop distributed applications, making it easy for you to develop your applications using Spring Cloud. With Spring Cloud Alibaba, you only need to add some annotations and a small amount of configurations to connect Spring Cloud applications to the distributed solutions of Alibaba, and build a distributed application system with Alibaba middleware. Flow...
    Downloads: 2 This Week
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  • 21
    Clara Rules

    Clara Rules

    Forward-chaining rules in Clojure(Script)

    Clara Rules is an expressive, forward-chaining rules engine written in Clojure (and ClojureScript), designed to let developers encapsulate domain logic cleanly and declaratively using rules defined as code rather than domain-specific languages—while supporting Java interoperability. Clara is a forward-chaining rules engine written in Clojure(Script) with Java interoperability. It aims to simplify code with a developer-centric approach to expert systems. Clara is built, tested, and deployed using Leiningen. ClojureScript tests are executed via puppeteer.
    Downloads: 0 This Week
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  • 22
    DynamixelSDK

    DynamixelSDK

    ROBOTIS Dynamixel SDK (Protocol1.0/2.0)

    DYNAMIXEL SDK is a software development kit that provides DYNAMIXEL control functions using packet communication. The API of DYNAMIXEL SDK is designed for DYNAMIXEL actuators and DYNAMIXEL-based platforms. You need to be familiar with C/C++ programming language for right use of the software. This e-Manual provides comprehensive information on ROBOTIS products and applications.
    Downloads: 6 This Week
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  • 23
    Ruoyi-Vue-Pro
    RuoYi-Vue-Pro is an enterprise-level, full-stack admin management system based on Spring Boot and Vue 3. It features a modular architecture with RBAC permissions, multi-tenant support, workflow engine integration, monitoring, logging, and microservice compatibility. Built for scalability and maintainability, it’s designed for Chinese-speaking developers building robust backend management systems, and includes tools for user, role, and permission management, data visualization, and more.
    Downloads: 1 This Week
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  • 24
    Aegis Authenticator

    Aegis Authenticator

    A free, secure and open source app for Android

    Aegis Authenticator is a free and open-source two-factor authentication (2FA) app for Android that helps users secure their online accounts by generating cryptographic one-time passwords (OTPs) such as TOTP and HOTP codes. Unlike many proprietary MFA apps, Aegis is designed with user privacy and local control in mind, storing secrets only on the device in an encrypted vault protected by PIN or biometric unlock, and offering features like backups encrypted with a user-chosen passphrase. It...
    Downloads: 2 This Week
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  • 25
    Discovery

    Discovery

    Nepxion Discovery is a solution for Spring Cloud

    Nepxion Discovery is a solution for Spring Cloud with blue green, gray, route, blacklist, limitation, circuit breaker, degrade, isolation, monitor, tracing, dye, failover, async agent. Only one or more services are upgraded at a time, the upgrade is completed and monitored and observed, and this process is performed continuously until all the old versions in the cluster are upgraded to the new version. In the process of stopping the old version, it is impossible to accurately calculate...
    Downloads: 2 This Week
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