Browse free open source System software and projects for Mac below. Use the toggles on the left to filter open source System software by OS, license, language, programming language, and project status.

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  • 1
    Grafana

    Grafana

    Leading open-source visualization and observability platform

    Grafana OSS is the leading open-source platform for visualization and observability. It enables teams to query, visualize, alert on, and explore telemetry data from multiple sources in a single interface. With support for 100+ data source plugins—including Prometheus, Loki, Elasticsearch, InfluxDB, SQL/NoSQL databases, and OpenTelemetry—Grafana helps teams correlate metrics, logs, and traces across applications and infrastructure. Users can build interactive dashboards with rich visualizations, template variables, and reusable panels to monitor systems and troubleshoot issues in real time. Grafana includes capabilities such as ad hoc data exploration, alerting, annotations, and flexible query support. Its extensible plugin ecosystem integrates with cloud platforms, databases, and developer tools—allowing teams to build observability workflows without vendor lock-in. The easiest way to get started with Grafana is with Grafana Cloud, our fully managed, full-stack observability platform.
    Downloads: 19 This Week
    Last Update:
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  • 2
    CacheGuard Gateway

    CacheGuard Gateway

    CacheGuard Gateway is a UTM, a WAF, and a QoS management appliance.

    CacheGuard Gateway is a free and open-source Unified Threat Management (UTM) solution, a Web Application Firewall (WAF), and a Quality of Service (QoS) platform designed to optimize WAN traffic. To obtain a CacheGuard Gateway appliance, download CacheGuard-OS and install it on the bare-metal or virtual machine of your choice. It’s that simple and completely free. The UTM includes a firewall, web antivirus, VPN server, and a URL-filtering and SSL-inspection web proxy. The WAF operates in conjunction with a reverse proxy, web application load balancer, and SSL offloader, and is capable of blocking malicious requests as well as traffic from IP addresses with poor reputations. The QoS manager enables traffic shaping to prioritize critical network flows, load balance multiple WAN links, and cache web traffic.
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    Downloads: 97 This Week
    Last Update:
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  • 3
    emqx

    emqx

    The Most Scalable MQTT Broker for IoT

    EMQX is the world's most scalable and reliable MQTT Broker designed by EMQ. It supports 100M concurrent IoT device connections per cluster while maintaining extremely high throughput and sub-millisecond latency. EMQX boasts more than 20,000 global users from over 50 countries, connecting more than 100M IoT devices worldwide, and is trusted by over 300 customers in mission-critical IoT scenarios, including well-known brands like HPE, VMware, Verifone, SAIC Volkswagen and Ericsson. Flex to meet the demands of various industries towards digital transformation, including Connected Vehicles, Industrial IoT, Oil & Gas, Carrier, Finance, Smart Energy, and Smart Cities.
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    Downloads: 89 This Week
    Last Update:
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  • 4
    key-elf

    key-elf

    Forensic tool to recover lost BTC private keys.

    A powerful utility to hunt down Bitcoin private keys from deleted wallet.dat files or damaged hard drives. If you accidentally deleted your Bitcoin Core wallet or formatted your disk, this tool can help. It bypasses the file system and scans the raw data directly, looking for the unique "fingerprint" (ASN.1 signature) of Bitcoin private keys to recover them from the digital wreckage.The Graphical User Interface (GUI) is the advanced/premium version. If needed, please visit: https://gitlab.com/8891689/key-elf
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    Downloads: 36 This Week
    Last Update:
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    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.

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  • 5
    DreamStudio by Volocian Studios
    Volocian believes first and foremost that financial status shouldn’t be a barrier to entry in multimedia content creation. Whether you want to design a product or website, record a band, remix a song, or produce a feature length movie with professional post production graphics and effects, Volocian™ wants to help, even if you’re using borrowed hardware with no previous experience. We provide affordable products and services for any budget, including cost-free solutions for education and demo purposes, while everything we do is designed with ease of use and flexibility in mind, to suit everyone from novice hobbyists to expert professionals. Wherever possible, Volocian™ relies on free, open source, and cross-platform software to prevent vendor lock-in, planned obsolescence, and software as a service licensing. While we remain pragmatic about the use of proprietary software, as we’re aware of the feature limitations of some open source solutions, free solutions are preferred.
    Downloads: 5 This Week
    Last Update:
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  • 6
    Asphyre

    Asphyre

    Asphyre is a cross-platform framework for Delphi and FreePascal.

    Asphyre, also known as Platform eXtended Library, is a cross-platform framework for developing video games and scientific applications in Delphi, and FreePascal/Lazarus. The framework provides facilities for real-time rendering of graphics (using DirectX, OpenGL or Software Renderer), text output, mathematics (including vectors and matrices) and networking communication, among other features. It also supports singleboard devices such as Raspberry PI, Intel Galileo, BeagleBone Black and others with features like GPIO, SPI, I2C and so on, along with external displays, sensors and other peripheral devices.
    Downloads: 5 This Week
    Last Update:
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  • 7
    HTTP Test Tool
    httest is a script based tool for testing and benchmarking web applications, web servers, proxy servers and web browsers. httest can emulate clients and servers in the same test script, very useful for testing proxys.
    Downloads: 4 This Week
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  • 8

    Jeeva folder utility

    File/folder utility useful for comparing/mirroring directories

    Full Docs: Download: JeevaX.Y.html Compare folder contents: jeeva --overlap/--mtime/--diff folder1 folder2 --overlap (see files that are in one or other folder, or common to both.) --mtime (files that are newer, the same age, or older ) --diff (files whose content is identical or different) Optionally can recursively descend to a specified depth or completely down folder tree comparing corresponding folders while descending. --copy for mirroring folders, primarily for keeping mirror on another drive or frequent copying to USB stick. Short copying time. Copies only modified and/or newly created files. For both above options one can either Specify the Source and Destination folders OR Specify 2 folders (the roots of the Source and Destination folder systems) and run Jeeva from a folder somewhere below the source root. Will take that folder to be the source, will look for a corresponding folder under DestinationRoot to be destination.
    Downloads: 3 This Week
    Last Update:
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  • 9
    Hippo CMS

    Hippo CMS

    Hippo CMS is a Java based, Open Source Web Content Management platform

    Hippo CMS is a Java based, Open Source Web Content Management platform. Hippo CMS uses a clean, modular architecture with an emphasis on the separation of the content from the presentation logic. This enables content editors to create content once, and then publish it to regular web sites, mobile sites, Facebook, REST APIs, digital magazines, mobile apps, and so on. Under the hood, Hippo CMS supports many open standards such as JCR and REST to simplify development and integrations with existing systems. Next to creating and editing content, Hippo CMS enables webmasters to create new channels or configure existing page templates using its channel manager and template composer. Using the Relevance Module, specific content can be targeted at specific visitors based on the visitor’s current context, past personal history and matching personas created by the marketing team.
    Downloads: 1 This Week
    Last Update:
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    Application Monitoring That Won't Slow Your App Down

    AppSignal's Rust-based agent is lightweight and stable. Already running in thousands of production apps.

    Full APM with errors, performance, logs, and uptime monitoring. 99.999% uptime SLA on the platform itself.
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  • 10
    JPPF

    JPPF

    The open source grid computing solution

    JPPF makes it easy to parallelize computationally intensive tasks and execute them on a Grid.
    Downloads: 0 This Week
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  • 11

    NagiosAppender

    log4j support for native nagios (nsca) integration

    This project encompasses a custom appender for log4j, intended for system administrators and/or developers interested in using the log4j architecture to push messages to Nagios, via the Nagios nsca server. Release 2.0.0 supports asynchronous message delivery, tunable timeouts, and a buffer for redelivery support.
    Downloads: 0 This Week
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  • 12
    SAFMQ: Store and Forward Message Queue, message oriented middleware. Uses include Assured Async Messaging, SOA, Delayed/Batch, and Cluster/Grid Computing. The SAFMQ server provides cross platform communication among C++, PHP, Java, and .NET clients.
    Downloads: 0 This Week
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  • 13
    As of now, you can get Ehcache only from ehcache.org or Maven central. A simple, fast, thread safe, standards based cache for Java, and provides memory and disk stores and distributed operation for clusters. ehcache is widely used in such open source projects as Hibernate and Spring. Terracotta offers enterprise edition
    Downloads: 0 This Week
    Last Update:
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  • 14
    This project is the home of the Maximo Maven plugin. This plugin is for the Maven 1.1 engine and works with Maximo versions from 6.x. All the documentation is found as Maven generated docs. The current version of the plugin's is on the project's site.
    Downloads: 0 This Week
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  • 15
    txObject ATK is an OS independent C++ & Python object library. Built in the 90s, it provides a 5-layer framework: Object Library, IO / Timers, Threads, Inter-Process / Distributed Object Communication
    Downloads: 0 This Week
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  • 16
    xinco - Document Management System, DMS
    xinco [eXtensibe INformation COre] is a powerful Web-Service based Information and Document Management System (DMS) for files, text, URLs and contacts, featuring ACLs, versioning, full text search, an FTP-like client (easy install, J2EE+MySQL/PostgreSQL)
    Downloads: 0 This Week
    Last Update:
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