30 open-source projects similar to lmax-exchange/disruptor, ranked by shared indexed features. Tags may describe platforms or build tools rather than the same primary purpose. Check each project’s use case, license, and deployment requirements before treating it as a replacement.
JCTools is a Java concurrency library providing a collection of lock-less and wait-free data structures. It serves as a toolkit for managing thread-safe data exchange, specifically designed to optimize high-throughput messaging and producer-consumer patterns in multi-threaded applications. The library distinguishes itself by implementing specialized queue structures that minimize contention and maximize throughput. By utilizing techniques such as cache-line padding, memory-barrier-based synchronization, and relaxed-consistency memory ordering, it avoids the performance bottlenecks often assoc
ConcurrentQueue is a header-only C++ template library that provides a lock-free data structure for multi-producer multi-consumer thread communication. It functions as a synchronization primitive designed to coordinate data flow between concurrent execution units using atomic operations rather than traditional mutex locking. The library distinguishes itself through a design that minimizes contention and synchronization overhead. It utilizes sub-queue token mapping to distribute workloads across partitioned internal queues and supports bulk operations to transfer multiple data elements in singl
Guava is a Java standard library extension and utility toolkit that provides optimized data structures, concurrency tools, and core extensions. It serves as a comprehensive set of helpers for Java development, focusing on reducing repetitive boilerplate logic. The project is distinguished by its specialized implementations of immutable collections, which ensure thread safety and data consistency by preventing accidental modification. It also includes a dedicated graph data structure library for modeling and traversing networks of interconnected nodes and edges, alongside advanced collection t
Firefox is a cross-platform web browser engine designed to render web content, execute JavaScript, and manage secure browsing sessions. It utilizes a multi-process isolation architecture that distributes browser tasks across independent operating system processes to ensure stability and prevent site-specific failures from impacting the entire application. The engine incorporates a sandboxed execution environment to restrict web content and untrusted scripts to isolated memory compartments, enforcing security policies that prevent unauthorized access to system resources. The project distinguis
Collections is a JavaScript data structure library that provides unified interfaces for sets, maps, ordered sequences, and key-value storage. It includes capacity-bounded eviction mechanisms, categorical grouping, and set membership collections designed to organize and manage complex datasets through consistent traversal methods. The library offers advanced primitives such as circular ring buffers that automatically discard old entries upon reaching capacity limits, and comparator-driven sorted sequences maintained through binary search positioning. It supports persistent state snapshotting v
CAP is a .NET distributed transaction framework and event bus designed to manage asynchronous communication in microservices. It implements the outbox pattern to ensure eventual consistency and reliable message delivery by persisting messages in local database tables until transactions commit. The framework includes a distributed message monitor and web dashboard for tracking the status of sent and received messages. It provides tools for event traffic visualization, distributed request tracing, and the ability to manually trigger retries for failed delivery attempts. The system supports var
Wujie is a micro-frontend framework and orchestrator designed to embed multiple independent web applications into a single host shell. It provides a system for managing the lifecycle, mounting, and state preservation of sub-applications while maintaining strict JavaScript and CSS isolation. The framework utilizes a web component sandbox combining iframes and custom elements to prevent global variable pollution and style leakage. It features a decentralized event bus for data exchange and state synchronization between isolated micro-applications, along with a mechanism to mirror internal sub-a
Moleculer is a Node.js microservices framework designed for building distributed systems. It functions as a distributed service broker, task orchestrator, and service mesh framework, enabling a decentralized architecture with built-in service discovery and load balancing. The project differentiates itself through a pluggable transport layer supporting protocols such as NATS, Redis, TCP, and Kafka, as well as a dedicated microservices API gateway that maps external HTTP and WebSocket requests to internal service actions. It includes built-in fault tolerance mechanisms, including circuit breake
This project is an open-source 3D game engine designed for building high-fidelity games, simulations, and cinematic environments. It functions as a robotics simulation platform with native integration for ROS 2 to model robot controllers and sensors. The engine features a multi-threaded Forward+ physically based renderer that supports hardware-accelerated ray tracing and global illumination. The system is built on a modular extension architecture using Gems to add or replace features without modifying core binaries. It includes a native SDK for AWS cloud integration, enabling IAM authenticati
Prism is a XAML application framework and MVVM architectural framework designed to build loosely coupled and testable applications across WPF, Xamarin Forms, and WinUI. It serves as a structural pattern implementation that separates business logic from the user interface to improve maintainability and testing. The framework provides a XAML event bus for exchanging data and triggering actions between independent components without direct coupling. It also functions as a dependency injection integrator, bridging external inversion-of-control containers to manage service delivery across multiple
Nonebot2 is an asynchronous Python framework for building event-driven chatbots across multiple messaging platforms. It centers on a non-blocking event bus and a driver-based adapter system that unifies different messaging protocols into a single consistent interface. The framework utilizes a modular plugin architecture, allowing for the discovery and loading of third-party extensions to add new event handlers and system capabilities. It distinguishes itself with a type-annotation based dependency injection system that automatically resolves and provides required service objects to handlers a
Arozos is a web-based desktop environment that delivers a full graphical desktop, personal cloud storage, media streaming, and productivity tools entirely through a browser. It functions as a personal cloud server, providing a private file storage system with upload, organization, and retrieval capabilities, alongside a media streaming server for on-demand music and video playback. The platform also includes a web office suite for creating and editing text documents, a cloud IDE with code execution for writing and running code, and a 3D print file previewer for inspecting models before printin
Rails Event Store is a library for implementing event sourcing and command query responsibility segregation patterns within Ruby applications. It functions as a framework for capturing all application state changes as an immutable sequence of events, providing a permanent and verifiable history of system operations. The library provides a messaging infrastructure that decouples business logic by broadcasting domain events through a central bus. This architecture allows for the execution of handlers either immediately or asynchronously, ensuring that heavy processing tasks do not block the pri
This project is a single-producer single-consumer concurrent queue for C++ designed for lock-free data exchange between threads. It provides a thread-safe mechanism to transfer data without the use of mutexes or locks. The queue is implemented as a contiguous circular buffer that supports dynamic capacity growth to prevent data loss when the queue reaches its limit. It utilizes atomic synchronization and wait-free index management to coordinate data access between the writing and reading threads. The library covers inter-thread communication and buffer management, offering both blocking and
Maestro is a distributed job scheduler and containerized data pipeline tool designed to coordinate complex sequences of tasks. It functions as a Kubernetes workflow orchestrator and MLOps automation platform, utilizing directed acyclic graphs to manage task dependencies and execution order across computing clusters. The system distinguishes itself through the use of isolated container environments for each workflow step, ensuring consistent runtime dependencies. It incorporates an asynchronous event bus to coordinate state transitions and provides lifecycle hook integration that dispatches sy
This project is a technical resource and pattern library for building enterprise applications with Python. It serves as a guide for implementing clean architecture, providing a framework for separating core business logic from infrastructure and external frameworks. The material focuses on Domain-Driven Design and the application of architectural patterns to maintain complex business requirements. It provides specific guidance on the Repository pattern for data abstraction, Command-Query Responsibility Segregation for optimizing read and write paths, and the use of dependency inversion to dec
Messenger is an asynchronous messaging system and event-driven communication layer designed to exchange events between decoupled components. It functions as an inter-process communication tool that removes direct dependencies between services by routing messages through a middleware layer. The system implements a pub-sub messaging model where components subscribe to specific event types and receive notifications when those events are triggered. It utilizes a central dispatcher to route asynchronous events from producers to registered subscribers. The project provides capabilities for distrib
FreeSWITCH is an open-source software telephony switch that routes and processes voice, video, and messaging calls over IP networks using standard protocols such as SIP and RTP. It serves as both a call routing and switching engine and a programmable telephony API, enabling developers to build custom telephony applications with event-driven call control and media manipulation. As a SIP media server, it handles media streaming, transcoding, and conferencing, and functions as a unified communications platform integrating voice, video, messaging, and conferencing into a single switchable infrastr
eShop is a .NET microservices reference application that provides a comprehensive blueprint for a distributed retail system. It implements an e-commerce architecture using decoupled services to manage core operations such as product catalogs, shopping baskets, and order processing. The project demonstrates a cloud-native retail infrastructure that incorporates an asynchronous event bus system to synchronize state across distributed services. It includes a reference implementation for integrating generative AI features by connecting the store to large language models via cloud providers. The
Napajs is an embeddable JavaScript engine and multi-threaded runtime designed to be integrated directly into other software applications as a component. It serves as a parallel computation framework that allows JavaScript code to execute across multiple threads, bypassing the standard single-threaded event loop limitation to handle CPU-intensive tasks. The runtime is distinguished by its ability to load and execute modules from the NPM ecosystem and its pluggable execution environment. This architecture allows for custom implementations of memory allocation, system logging, and performance me
The Android NDK samples provide a comprehensive collection of code examples demonstrating how to integrate C and C++ native code into Android applications. This repository serves as a practical guide for developers utilizing the Android Native Development Kit to implement performance-critical application components that require direct hardware access and low-level system interaction. The project highlights the use of the Java Native Interface to bridge managed code with native modules, enabling cross-language function calls and efficient data exchange. It demonstrates how to manage native act
uthash is a macro-based data structure library for C that provides header-only implementations of hash tables, linked lists, stacks, and dynamic arrays. It allows for key-based lookups and organized data storage without requiring external library linking. The library uses intrusive linking to embed metadata directly into user-defined structures via macros. This approach enables in-place structure extension, allowing hash and link fields to be added to existing structs without separate memory allocations for container nodes. The project also covers specialized memory and data stream managemen
This project is a structured logging framework and library for Node.js applications. It produces machine-readable log records in JSON format with tiered severity levels, ensuring consistent parsing and centralized storage. The system includes a log stream manager for routing records to multiple destinations, such as files and consoles, and a command line interface for filtering, formatting, and visualizing raw JSON log streams. It supports the creation of child loggers that inherit parent configurations and merge additional contextual metadata. The framework covers a broad range of operation
This project is a comprehensive collection of common computer science algorithms and data structures implemented in Swift. It serves as an educational reference and library for studying computational complexity, algorithmic logic, and data structure engineering through practical code examples. The repository provides a wide suite of data structure implementations, including various types of linked lists, heaps, hash tables, and an extensive range of hierarchical trees such as Red-Black, B-Tree, and Splay trees. It also covers diverse sorting and searching techniques, from basic bubble sort to
Boost is a collection of portable, high-performance source libraries that extend the C++ standard library. It provides a wide range of reusable components, data structures, and algorithms designed to add capabilities to the base language across different platforms. The project is distinguished by its extensive focus on compile-time template metaprogramming and generic programming. It implements advanced architectural patterns such as policy-based design, concept-based type validation, and the use of SFINAE for conditional template resolution to minimize runtime overhead. The library covers a
This is a structured reference that maps Linux kernel network sysctl parameters to their specific roles in the packet processing pipeline, from the network interface card through to the application layer. It covers the full path of packet traversal, including interrupt mitigation, buffer management, queuing disciplines, and TCP auto-tuning mechanisms. The reference details how to configure kernel parameters for connection handling, including TCP listen backlog, SYN queue management, FIN timeout, and syncookies. It also addresses queue management and bufferbloat control through egress queuing
Rueidis is a high-performance Redis client library for Go that provides a type-safe and asynchronous interface for interacting with Redis servers. It includes a full implementation of the Redis serialization protocol and a dedicated connection manager to handle pooling, multiplexing, and automatic pipelining. The library is distinguished by its support for RDMA connectivity to reduce latency and CPU overhead. It features a distributed lock manager that implements majority-based locking and optimistic concurrency control, as well as client-side caching with invalidation signals to minimize net
FastDev4Android is an all-in-one development framework for building Android applications. It accelerates app creation by integrating networking, data parsing, dependency injection, image loading, and UI components into a single workflow, bundling these capabilities to speed up mobile app development. The framework provides annotation-driven dependency injection that automatically wires components, views, event handlers, and threading into Android components at compile time. It implements the Model-View-Presenter (MVP) pattern to separate data, UI, and business logic into distinct layers for i
Offline is a JavaScript library that provides an offline-first framework for web applications, centered on monitoring network connectivity and managing the application's response to connection state changes. It detects transitions between online and offline states by listening to browser events and emits custom events that allow other parts of the application to react accordingly. The library distinguishes itself by combining event-driven connectivity detection with automatic request queuing and retry. When a request fails due to lost connectivity, it is captured and queued in memory, then au
Blog.Core is a production-ready backend boilerplate for building enterprise APIs and microservices using ASP.NET Core. It provides a foundational infrastructure for distributed systems, including tools for database-first scaffolding and the implementation of multi-tenant API frameworks. The project distinguishes itself through automated data layer generation, which produces entity models and repository layers directly from database schemas. It implements a centralized identity management system using standard identity server protocols to handle authentication and authorization across multiple