Showing 231 open source projects for "complex system"

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  • Stop Storing Third-Party Tokens in Your Database Icon
    Stop Storing Third-Party Tokens in Your Database

    Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.

    Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
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    Powerful App Monitoring Without Surprise Bills

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    Tired of monitoring tools that punish you for scaling? AppSignal offers transparent, predictable pricing with every feature unlocked on every plan. Track errors, monitor performance, detect anomalies, and manage logs across Ruby, Python, Node.js, and more. Trusted by developers since 2012 with free dev-to-dev support. No credit card required to start your 30-day trial.
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  • 1
    System Design Visualizer

    System Design Visualizer

    An interactive tool that transforms static system design diagrams

    System Design Visualizer is an interactive web-based tool that empowers engineers and architects to visually model, explore, and communicate complex system architecture designs in real time. It provides a drag-and-drop canvas with reusable components representing servers, databases, APIs, message queues, and user clients, enabling stakeholders to create diagrams that describe data flows, dependencies, and interactions clearly and intuitively.
    Downloads: 0 This Week
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  • 2
    Kmonad

    Kmonad

    An advanced keyboard manager

    KMonad is a cross-platform, advanced keyboard remapping tool written in Haskell. It provides low-level key control, supporting layers, tap-hold combos, multi-tap, macros, and more—even for keyboards without firmware-level customization.
    Downloads: 8 This Week
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  • 3
    NetworkX

    NetworkX

    Network analysis in Python

    NetworkX is a Python package for the creation, manipulation, and study of the structure, dynamics, and functions of complex networks. Data structures for graphs, digraphs, and multigraphs. Many standard graph algorithms. Network structure and analysis measures. Generators for classic graphs, random graphs, and synthetic networks. Nodes can be "anything" (e.g., text, images, XML records). Edges can hold arbitrary data (e.g., weights, time-series). Open source 3-clause BSD license. Well tested...
    Downloads: 7 This Week
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  • 4
    Better Auth

    Better Auth

    The most comprehensive authentication library for TypeScript

    Better Auth is framework-agnostic authentication (and authorization) library for TypeScript. It provides a comprehensive set of features out of the box and includes a plugin ecosystem that simplifies adding advanced functionalities with minimal code in a short amount of time. Whether you need 2FA, multi-tenant support, or other complex features. It lets you focus on building your actual application instead of reinventing the wheel.
    Downloads: 9 This Week
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  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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  • 5
    Convert to it!

    Convert to it!

    Truly universal online file converter

    Convert to it! is a lightweight utility project designed to provide simple and fast file or data conversion workflows through a developer-friendly interface. The repository focuses on practical transformations between formats, making it useful in scripting pipelines, automation tasks, and small backend utilities where reliability matters more than heavy frameworks. Its structure emphasizes clarity and minimal dependencies so developers can quickly understand and extend the codebase. The tool...
    Downloads: 19 This Week
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  • 6
    Quartz Scheduler
    Quartz is a richly featured, open source job scheduling library that can be integrated within virtually any Java application - from the smallest stand-alone application to the largest e-commerce system. Quartz can be used to create simple or complex schedules for executing tens, hundreds, or even tens-of-thousands of jobs; jobs whose tasks are defined as standard Java components that may execute virtually anything you may program them to do. The Quartz Scheduler includes many enterprise-class features, such as support for JTA transactions and clustering.
    Downloads: 3 This Week
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  • 7
    OpenFang

    OpenFang

    Open-source Agent Operating System

    OpenFang is an open-source agent operating system designed to orchestrate autonomous AI agents and workflows in a structured, production-oriented environment. Written primarily in Rust, the project focuses on building a high-performance runtime where multiple specialized agents can collaborate to complete complex computational or development tasks. It aims to move beyond simple chat-based agents by providing infrastructure for persistent agent memory, task coordination, and scalable execution. ...
    Downloads: 10 This Week
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  • 8
    OpenRGB

    OpenRGB

    Open source RGB lighting control

    OpenRGB is a cross-platform, vendor-agnostic RGB lighting controller that frees you from proprietary motherboard or peripheral utilities. It talks directly to supported devices and exposes a unified interface for setting colors, animations, and per-LED layouts across brands. The app supports running as a standalone GUI, a headless server, or a networked client so multiple machines can synchronize lighting. Profiles make it easy to save and switch complex scenes, and a graphical LED map helps...
    Downloads: 51 This Week
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  • 9
    TextFSM

    TextFSM

    Python module for parsing semi-structured text into python tables

    ...It is particularly useful for extracting structured data from command-line interface (CLI) outputs, such as those from network devices, routers, and switches. By defining parsing logic through reusable template files, TextFSM transforms unstructured text into structured data like lists or tables without requiring complex regular expression code. Each template defines states, transitions, and regex patterns that determine how to interpret text line by line, enabling precise extraction of key information from varied sources. This modular approach allows users to maintain a library of templates for different data formats, improving automation in network operations and system administration. ...
    Downloads: 0 This Week
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  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
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  • 10
    NetBird

    NetBird

    Connect your devices into a secure WireGuard-based overlay network

    NetBird is an open-source solution that builds a WireGuard®-based overlay network enabling seamless, encrypted peer-to-peer connectivity without the complexity of firewall rules, port forwarding, or centralized VPN gateways. It integrates access control features such as SSO and MFA for secure, policy-driven networking. Every machine in the network runs NetBird Agent (or Client) that manages WireGuard. Every agent connects to Management Service that holds network state, manages peer IPs, and...
    Downloads: 27 This Week
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  • 11
    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: 1 This Week
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  • 12
    OpenEBS

    OpenEBS

    Leading Open Source Container Attached Storage

    OpenEBS helps Developers and Platform SREs easily deploy Kubernetes Stateful Workloads that require fast and highly reliable container-attached storage. OpenEBS turns any storage available on the Kubernetes worker nodes into local or distributed Kubernetes Persistent Volumes. OpenEBS is Kubernetes native Container Attached Storage solution that makes it possible for Stateful applications to easily access Dynamic Local PVs or Replicated PVs. By using the Container Attached Storage pattern...
    Downloads: 0 This Week
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  • 13
    URL Routing

    URL Routing

    A bidirectional router with more type safety and less fuss

    swift-url-routing is a bidirectional router with more type safety and less fuss. This library is built with Parsing. ​
    Downloads: 0 This Week
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  • 14
    ZeroByte

    ZeroByte

    Backup automation for self-hosters

    ...It targets self-hosting enthusiasts, homelab operators, and small teams who need a straightforward way to manage backups across diverse storage backends without resorting to complex scripts or CLI-only tools. Zerobyte lets you configure automated jobs with flexible schedules and retention policies, monitor backup jobs through a centralized dashboard, and choose from multiple source types (like local directories, NFS, SMB, WebDAV, and more), all while ensuring end-to-end encryption via Restic underneath. The system also supports common remote destinations such as S3-compatible storage or REST servers and encapsulates much of the complexity of backup logic so users can focus on reliability and restore confidence rather than manual orchestration.
    Downloads: 7 This Week
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  • 15
    Horust

    Horust

    Horust is a supervisor / init system written in rust

    Horust is a Rust-based init system for Linux, designed to be fast, simple, and secure. Unlike traditional init systems, Horust focuses on stateless configuration using TOML files and aims to bring predictability and ease of use to system boot and service management. Written with Rust’s safety guarantees, Horust provides features like dependency handling, parallel service startup, and logging, making it suitable for containers, embedded systems, or minimal Linux environments where systemd is too complex or heavy.
    Downloads: 0 This Week
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  • 16
    Opik

    Opik

    Debug, evaluate, and monitor your LLMapps, RAG systems, and agentic AI

    Confidently evaluate, test, and monitor LLM applications. Opik is an open-source platform for evaluating, testing, and monitoring LLM applications. Built by Comet. Record, sort, search, and understand each step your LLM app takes to generate a response. Manually annotate, view, and compare LLM responses in a user-friendly table. Log traces during development and in production. Run experiments with different prompts and evaluate against a test set. Choose and run pre-configured evaluation...
    Downloads: 0 This Week
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  • 17
    ludo

    ludo

    A libretro frontend written in golang

    Ludo is a user-friendly, lightweight frontend for the libretro ecosystem, designed to make retro game emulation simple and accessible. Unlike more complex frontends like RetroArch, Ludo emphasizes minimalism and ease of use, offering a plug-and-play experience with clean navigation and fast loading times. It supports multiple libretro cores, handles gamepad input automatically, and works across platforms with a native UI. Ludo is ideal for users who want to enjoy retro games with minimal...
    Downloads: 5 This Week
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  • 18
    ZITADEL

    ZITADEL

    Identity infrastructure, simplified for you

    Secure authentication management for your application. Customize as you grow, with easy APIs and programmable workflows. Focus on growing, your login is in good hands. Streamline your application development with our all-in-one identity suite. Designed for all user types, be it consumers, businesses, or employees. Offload complex tasks by using our API as solid abstractions. Benefit from an adaptable identity infrastructure with custom code extensions and robust security defaults.
    Downloads: 2 This Week
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  • 19
    Icinga 2

    Icinga 2

    The core of our monitoring platform

    Icinga is a monitoring system that checks the availability of your network resources, notifies users of outages, and generates performance data for reporting. Scalable and extensible, Icinga can monitor large, complex environments across multiple locations. This includes your data center as well as your private, public, or hybrid clouds. Icinga 2 is the monitoring server and requires Icinga Web 2 on top in your Icinga Stack.
    Downloads: 1 This Week
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  • 20
    Radarr

    Radarr

    A fork of Sonarr to work with movies à la Couchpotato

    Radarr makes failed downloads a thing of the past. Password-protected releases, missing repair blocks or virtually any other reason? no worries. Radarr will automatically blacklist the release and tries another one until it finds one that works. Ensure you get the right release every time! Custom Formats allow fine control over release prioritization and selection. As simple as a single preferred word or as complex as you want with multiple criteria and regex. Find all the releases, choose...
    Downloads: 9 This Week
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  • 21
    Homebox

    Homebox

    Inventory and organization system built for the Home User

    ...The embedded web UI is responsive across devices from desktops to smartphones, providing powerful search and filters that let users find items quickly. Homebox supports custom fields for extended metadata and uses SQLite for easy setup and backups, facilitating straightforward deployment without complex infrastructure.
    Downloads: 2 This Week
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  • 22
    Play!

    Play!

    Play! - PlayStation2 Emulator

    ...is an open-source cross-platform emulator for Sony’s PlayStation 2 that aims to run PS2 games on a wide range of modern systems including Windows, macOS, Linux, Android, iOS, and web browsers by implementing core PS2 hardware functionality in software. It emulates primary components like the Emotion Engine CPU and graphics synthesizer, translating game code and hardware calls into host system operations, while providing users with controls to load disc images, manage states, and configure rendering options. Because the PS2’s architecture is complex and proprietary, Play! pursues compatibility incrementally, with many titles playable to varying degrees and an active compatibility tracker detailing individual game status. ...
    Downloads: 5 This Week
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  • 23
    OliveTin

    OliveTin

    OliveTin gives safe and simple access to predefined shell commands

    Give safe and simple access to predefined shell commands from a web interface. OliveTin just runs shell commands, so theoretically, you could integrate with a bunch of stuff just by using curl, ping, etc. However, writing your own shell scripts is a great way to extend OliveTin. Uses only a few MB of RAM and barely any CPU. Written in Go, with a web interface written as a modern, responsive, single-page app that uses the REST/gRPC API. Helps potential contributors be consistent, and helps...
    Downloads: 1 This Week
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  • 24
    Sentry JS

    Sentry JS

    Sentry SDKs for JavaScript

    From error tracking to performance monitoring, developers can see what actually matters, solve quicker, and learn continuously about their applications, from the frontend to the backend. Over 1M developers and 80K organizations already ship better software faster with Sentry application monitoring. Won’t you join them? Learn the ins and outs of distributed tracing and how it can assist you in monitoring the increasingly complex requirements of full-stack applications. Source code, error...
    Downloads: 3 This Week
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  • 25
    TNTSearch

    TNTSearch

    A fully featured full text search engine written in PHP

    TNTSearch is a full-text search engine written in PHP, designed to be integrated into Laravel and other PHP applications. It offers real-time, efficient indexing and searching of textual data using SQLite as its storage backend. TNTSearch is highly configurable and supports features like fuzzy searching, customizable ranking algorithms, and boolean search, making it a powerful tool for adding search functionality to websites and applications.
    Downloads: 0 This Week
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