Awesome Open Source is a website for browsing and comparing open source projects. It organizes projects by categories and by programming languages, and applies expert categorization, alternatives and package manager metrics. The site states it spans 7,000 topics in 59 categories across 1,500,000 projects and 345,000 packages.
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Open Source Design is a community of designers, developers and advocates working to improve the usability of open source software. It runs a job board connecting designers with projects, organizes events and conference design tracks, and shares openly licensed resources and open source design tools.
This Discord page presents Discord's open source projects and the open source communities hosted on Discord. It states Discord's commitment to open source development principles and lists contributions including Access, a portal for employees to discover and manage access to internal systems. It also lists open source libraries used to build Discord and invites users to create a server for their project.
OpenAudio is a list of open-source audio software projects, covering apps, plugins and libraries. The intent is to catalog open-source audio apps, plugins such as VSTs, and other resources that are either fully featured or useful examples with non-trivial features. It includes sections for audio plugins, collections, audio apps, development libraries and APIs, code samples and open data resources.
Gadgeteer is a technology site focused on free and open source software (FOSS). It hosts a large curated list of free and open source software, and runs a tech blog covering gadgets, technology news and open source projects. The site advises corporate and government users to vet software with their CIOs and notes concerns related to OpenCore.
MyBrowserAddon is a community platform for open-source projects. It helps developers create and share open-source projects, and provides documentation, tutorials, frequently asked questions and bug report forms for open-source software. The platform is dedicated to developers interested in learning about and contributing to open-source projects.
Awesome Open Source lists open source projects categorized as OSINT alongside repository details. Entries include Sherlock for hunting social media accounts by username, Twint for Twitter scraping, Amass for attack surface mapping and asset discovery, and SpiderFoot, which automates OSINT for threat intelligence. Each entry shows dependent packages, total releases and most recent commit information.
Open Source Game Clones is a site gathering open-source or source-available remakes of old games in one place. It lists clones, remakes, official source releases, similar games and tools such as patches and resource extractors, and invites contributions through its GitHub repository.
A GitHub Gist by paulirish titled How to view-source of a Chrome extension. It lists several options for viewing extension source, including a command-line method to download the extension as a zip and extract it, using the CRX Viewer website, and using the CRX Viewer extension. It also describes viewing the source of a locally installed extension.
DISS is a georeferenced repository of tectonic, fault and paleoseismological information designed for potential applications in regional and national seismic hazard assessment. It compiles potential earthquake sources larger than magnitude 5.5 in Italy and surrounding areas, and functions as a GIS-based tool for exploring onshore and offshore earthquake faulting. The freely accessible, periodically updated database includes four categories of seismogenic sources with different parameterizations, supports ground-shaking and tsunami hazard applications, and contains over 4000 bibliographic references, more than 1200 images and nearly 1000 equivalent pages of original documentation on seismogenic sources. Its current version is 3.3.1.
React Bits offers free, open source React components for animated text, backgrounds, interactive cards and micro interactions. Components install as source the developer owns, and the library provides live demos with copyable source. Developers can choose JavaScript or TypeScript with plain CSS or Tailwind, and copy the source or install a component with the CLI.
Source 2 Viewer (S2V) is a free, open-source tool for browsing VPK archives and viewing, extracting and decompiling Source 2 assets, including maps, models, materials, textures, sounds and particles. The project is reverse-engineered without an official Source 2 SDK and is not affiliated with Valve Software. It supports games such as Counter-Strike 2, Dota 2, Deadlock and Half-Life: Alyx.
Read practical guidance on starting and contributing to open-source projects.
Open Source Linux Programs is a Linux, macOS, BSD, or Unix resource for tools, documentation, communities, or system workflows.
Open Source Security Software is a developer resource for coding, documentation, communities, security research, or software tools.
OpenAlternative is a curated collection of open source alternatives to everyday SaaS products. The site lists projects with repository stars, last commit times, licenses, and short descriptions, and notes support from partners and sponsors. It describes itself as a crowdsourced directory of open-source software.
Opensource Builders is a platform that helps users discover open source alternatives to popular proprietary software. It allows users to compare features and capabilities of different open source tools to identify the best options for their needs. The platform is an initiative of Openship, and its interface was adapted from a design by Maze Heart.
opensourcealternative.to is a free directory that bills itself as the world's largest collection of open source software alternatives to proprietary products. It hosts over 500 open source alternatives to popular proprietary tools, and reports that over 2 million users have replaced proprietary software with options found on the platform. Listed alternatives include game engines, business suites, observability platforms, communication tools, and databases.
OSINT Techniques offers free open source resources for open source intelligence and social media investigations, aimed mainly at analysts and researchers in investigative roles. The site explains that open source means publicly available information that any member of the public can lawfully obtain, and includes sections on tools, training, books and videos.
Twake is described as a privacy-first open source workplace offering chat, drive and mail. The site lists Twake Chat as instant messaging for professional use, Twake Drive as secure open source data storage, and Twake Mail as an open source email standard for professionals. It also lists Twake Visio and Twake Calendar, and states a single Twake account provides access to all products.
OpenSourceApple is Apple's open source site, presenting featured projects and releases. Open source software is described as central to Apple platforms and developer tools. Featured projects include Swift, Container and WebKit, and source code for operating systems and developer tools is available via releases or Git repositories.
FitoTrack is an open-source Android app for logging and viewing workouts such as running, cycling and hiking. It records workout type, shows general data and position on a map, and includes speed, height and heart rate diagrams. Workouts can be exported as GPX and uploaded to OpenStreetMap. The source is licensed under GPLv3.
Fossies is a curated repository of selected free and open source software focused mainly on Internet, engineering and science. It lets users view archive contents and browse individual member files, and provides doxygen-generated source code documentation for most packages. It also offers package meta information and license file overviews.
GlobaLeaks is free, open source software for setting up and maintaining a secure whistleblowing platform. It is designed as a framework for anonymous reporting, with privacy protection and submission protection enabled by default, and has been translated into over 70 languages. The source code is public and has been examined in independent security audits since 2011.