RAW RANKED SITES ABOUT
#OPEN SOURCE

The most comprehensive list of open source websites last updated on Jul 1 2021.
Stats collected from various trackers included with free apps.
1
GitHub: Where the world builds software · GitHub GitHub is where over 50 million developers shape the future of software, together. Contribute to the open source community, manage your Git repositories, review code like a pro, track bugs and features, power your CI/CD and DevOps workflows, and secure code before you commit it.
2
Blog Tool, Publishing Platform, and CMS — WordPress.org Open source software which you can use to easily create a beautiful website, blog, or app.
3
SourceForge - Download, Develop and Publish Free Open Source Software Free, secure and fast downloads from the largest Open Source applications and software directory - SourceForge.net
4
Secure email: ProtonMail is free encrypted email. ProtonMail is the world''s largest secure email service, developed by CERN and MIT scientists. We are open source and protected by Swiss privacy law
6
Softpedia - Free Downloads Encyclopedia A library of over 1,000,000 free and free-to-try applications for Windows, Mac, Linux and Smartphones, Games and Drivers plus tech-focused news and reviews
7
.NET | Free. Cross-platform. Open Source. .NET is a developer platform with tools and libraries for building any type of app, including web, mobile, desktop, games, IoT, cloud, and microservices.
8
Star No adware, no spyware, no bundles, no malware, fast downloads, free services and a single ad.
9
Enterprise Open Source and Linux | Ubuntu Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
10
Moodle - Open-source learning platform | Moodle.org Moodle is a Learning Platform or course management system (CMS) - a free Open Source software package designed to help educators create effective online courses based on sound pedagogical principles. You can download and use it on any computer you have handy (including webhosts), yet it can scale from a single-teacher site to a 200,000-student University. Moodle has a large and diverse user community with over 100,000 sites registered worldwide speaking over 140 languages in every country there is.
11
Gatsby LinkedIn Gatsby is a React-based open source framework with performance, scalability and security built-in. Collaborate, build and deploy 1000x faster with Gatsby Cloud.
13
It's FOSS - World's Leading Linux & Open Source Web Portal With It's FOSS, you'll learn the latest news from the open source world. You'll also learn to use Linux effectively with top class tutorials and expert tips.
14
Joomla Content Management System (CMS) - try it for free! Joomla! is the mobile-ready and user-friendly way to build your website. Choose from thousands of features and designs. Joomla! is free and open source.
15
The most powerful real-time 3D creation platform - Unreal Engine Unreal Engine is the world’s most open and advanced real-time 3D creation platform for photoreal visuals and immersive experiences.
17
cdnjs - The #1 free and open source CDN built to make life easier for developers Simple. Fast. Reliable. Content delivery at its finest. cdnjs is a free and open-source CDN service trusted by over 10% of websites, powered by Cloudflare. We make it faster and easier to load library files on your websites.
20
Develop and Download Open Source Software - OSDN OSDN is a free-of-charge service for open source software developers. We offer Git/SVN/Mercurial/Bazaar/CVS repositories, mailing list, bug trafficking system, bulletin boards and forums, web site hosting, release file download service, eternal file archive, complete backup and shell environment.
21
Blog Tool, Publishing Platform, and CMS — WordPress.org Open source software which you can use to easily create a beautiful website, blog, or app.
23
Cults ・ Download for free 3D models for 3D printers Download many free STL files for 3D printers. Find out the best paid and free 3D models of 3D printing. Share in open source or sell your 3D print files!
24
Anaconda | The World's Most Popular Data Science Platform Anaconda is the birthplace of Python data science. We are a movement of data scientists, data-driven enterprises, and open source communities.
25
WooCommerce - Sell Online With The eCommerce Platform for WordPress Sell online with the fully customizable, open source eCommerce platform built for WordPress.
26
Open Source Search: The Creators of Elasticsearch, ELK Stack & Kibana | Elastic We're the creators of the Elastic (ELK) Stack -- Elasticsearch, Kibana, Beats, and Logstash. Securely and reliably search, analyze, and visualize your data in the cloud or on-prem.
29
TensorFlow An end-to-end open source machine learning platform for everyone. Discover TensorFlow's flexible ecosystem of tools, libraries and community resources.
30
Shotcut - Home Shotcut is a free, open source, cross-platform video editor for Windows, Mac and Linux
31
Audacity ® | Free, open source, cross-platform audio software for multi-track recording and editing. Welcome to Audacity Audacity® is free, open source, cross-platform audio software for multi-track recording and editing. Audacity is available for Windows®, Mac®, GNU/Linux® and other operating systems. Check our feature list, Wiki and Forum. Download Audacity 2.1.3 Mar 17th, 2017: Audacity
32
HandBrake: Open Source Video Transcoder HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded video transcoder.
33
MariaDB Enterprise Open Source Database & SkySQL MariaDB Cloud | MariaDB MariaDB provides open source database and database as a service (DBaaS) solutions to support scalability, mission-critical deployments, and more.
34
unDraw - Open source illustrations for any idea The design project with open-source illustrations for any idea you can imagine and create. Create beautiful websites, products and applications with your color, for free.
35
Open Source ERP and CRM | Odoo From ERP to CRM, eCommerce and CMS. Download Odoo or use it in the cloud. Grow Your Business.
36
PostgreSQL: The world''s most advanced open source database The official site for PostgreSQL, the world''s most advanced open source database
37
Slashdot: News for nerds, stuff that matters Slashdot: News for nerds, stuff that matters. Timely news source for technology related news with a heavy slant towards Linux and Open Source issues.
39
JSON Editor Online - view, edit and format JSON online JSON Editor Online is a web-based tool to view, edit, format, transform, and diff JSON documents.
41
Google Open Source – opensource.google Google
42
Learn, Code, Get the Job | gitconnected Tools to build your coding career. A developer community for career growth and your programmer homepage. Collaborate with other software engineers.
43
Secure email: Tutanota free encrypted email. Tutanota is the secure email service, built in Germany. Use encrypted emails on all devices with our open source email client, mobile apps & desktop clients.
44
Prusa3D - Open-Source 3D printers by Josef Prusa Prusa Research is a 3D printing company based in Prague, Czech Republic. It was founded by Josef Prusa, one of the core developers of the Open Source project RepRap, in 2012 as a one-man startup and grows to a 400+ team now. His open-sourced Prusa i3 design is according to 3DHubs the most used 3D printer in the world. We are shipping more than 6000 Original Prusa i3 printers per month to over 160 countries directly from Prague. Our MK3/S printer is the best 3D printer for 2018 and 2019 according to MAKE: Magazine US and the best FFF printer according to 3D Printing Industry Awards.
45
Split and merge PDF files. Free and open source - PDFsam A free and open source software to merge, split, rotate and extract pages from PDF files. For Windows, Linux and Mac
46
Bitcoin - Open source P2P money Bitcoin is an innovative payment network and a new kind of money. Find all you need to know and get started with Bitcoin on bitcoin.org.
47
Enabling Open Innovation & Collaboration | The Eclipse Foundation The Eclipse Foundation - home to a global community, the Eclipse IDE, Jakarta EE and over 375 open source projects, including runtimes, tools and frameworks.
48
Red Hat - We make open source technologies for the enterprise Red Hat is the world’s leading provider of enterprise open source solutions, including high-performing Linux, cloud, container, and Kubernetes technologies.
49
Plikli CMS | Your Source for Social News and Networking Plikli is an open source content management system that lets you easily create your own user-powered website.
50
Free CSS | 3127 Free Website Templates, CSS Templates and Open Source Templates Free CSS has 3127 free website templates, all templates are free CSS templates, open source templates or creative commons templates.
51
Open Broadcaster Software®️ | OBS OBS (Open Broadcaster Software) is free and open source software for video recording and live streaming. Stream to Twitch, YouTube and many other providers or record your own videos with high quality H264 / AAC encoding.
52
ActiveState | The Open Source Languages Company Ready-to-use open source languages and tools to help coders and teams be more productive. Get the security and license compliance you need.
53
SparkFun Electronics SparkFun is an online retail store that sells the bits and pieces to make your electronics projects possible.
55
Kodi | Open Source Home Theater Software Kodi is a free media player that is designed to look great on your big screen TV but is just as home on a small screen.
56
High DA Bookmarking | Your Source for Social News and Networking Plikli is an open source content management system that lets you easily create your own user-powered website.
57
GrabCAD: Design Community, CAD Library, 3D Printing Software GrabCAD is the largest online community of professional engineers, designers & students. Learn about our 3D printing software GrabCAD Print & GrabCAD Shop
58
FOSSMint: Everything About Linux and FOSS FOSSMint covers everything about Linux, FOSS, tips and tricks, application reviews and more.
59
Free SVG images, SVG cut files and transparent PNG with CC0 public domain license Download free open source SVG graphics created in Inkscape with public domain license, SVG cut files, silhouettes and transparent PNG clip art.
60
Home ReShade - Advanced post-processing everywhere.
61
Chart.js | Open source HTML5 Charts for your website Simple, clean and engaging HTML5 based JavaScript charts. Chart.js is an easy way to include animated, interactive graphs on your website for free.
62
NumPy Why NumPy? Powerful n-dimensional arrays. Numerical computing tools. Interoperable. Performant. Open source.
64
Find Open Source By Searching, Browsing and Combining 7,000 Topics Find Useful Open Source By Browsing and Combining 7,000 Topics In 59 Categories, Spanning The Top 342,556 Projects
66
Mapbox An open source mapping platform for custom designed maps. Our APIs and SDKs are the building blocks to integrate location into any mobile or web app.
67
calibre - E-book management calibre: The one stop solution for all your e-book needs. Comprehensive e-book software.
68
BlazeMeter, an Enterprise-grade Continuous Testing Platform BlazeMeter's Continuous Testing platform is 100% Open Source Compatible & Enterprise Ready. With BlazeMeter, Dev and QA teams can run high-scalable continuous testing for website, mobile, api and software.
70
Adafruit Industries, Unique & fun DIY electronics and kits Adafruit Industries, Unique & fun DIY electronics and kits : - Tools Gift Certificates Arduino Cables Sensors LEDs Books Breakout Boards Power EL Wire/Tape/Panel Components & Parts LCDs & Displays Wearables Prototyping Raspberry Pi Wireless Young Engineers 3D printing NeoPixels Kits & Projects Robotics & CNC Accessories Cosplay/Costuming Halloween Reseller and School Packs Internet of Things - IoT Development Boards Batteries Gift Ideas Feather CircuitPython Circuit Playground Crickit - Creative Robotics Particle STEMMA Machine Learning micro:bit Add-ons & Accessories Bluetooth PPE Microchip ecommerce, open source, shop, online shopping
71
Umbraco - the flexible open source .NET CMS Umbraco is the leading Open Source ASP.NET CMS | More than 500,000 websites worldwide are powered by our flexible and editor-friendly CMS
72
Open Source Cloud ERP Software - ERPNext ERPNext is the world''s top 100% open source ERP which supports manufacturing, distribution, retail, trading, services, education, non profits and healthcare
73
Feather – Simply beautiful open source icons Feather is a collection of simply beautiful open source icons. Each icon is designed on a 24x24 grid with an emphasis on simplicity, consistency and readability.
74
Open Source Solution Development Specialists WisdmLabs specializes in building web solutions with open source. We work with open source platforms like WordPress, Laravel and Magento.
75
Percona – The Database Performance Experts Percona delivers enterprise-class software, support, consulting and managed services for both MySQL and MongoDB across traditional and cloud-based platforms.
76
High Bookmarks Club - Your Source for Social News and Networking Kliqqi is an open source content management system that lets you easily create your own user-powered website.
77
BigBlueButton - Open Source Web Conferencing An HTML5-based open-source application that enables teachers to engage and collaborate with their students online through chat, audio, video and much more!
78
Strapi - Open source Node.js Headless CMS 🚀 Strapi is the next-gen headless CMS, open-source, javascript, enabling content-rich experiences to be created, managed and exposed to any digital device.
79
Xamarin | Open-source mobile app platform for .NET Xamarin is a free and open source mobile app platform for building native and high-performance iOS, Android, tvOS, watchOS, macOS, and Windows apps in C# with .NET.
80
Welcome to STMicroelectronics GitHub Pages. | STMicroelectronics GitHub STMicroelectronics Open Source
81
Tutpub | Your Source for Social News and Networking Plikli is an open source content management system that lets you easily create your own user-powered website.
83
28 Online Vulnerability Scanners & Network Tools | HackerTarget.com Online Vulnerability Scanners to map the attack surface and identify vulnerabilities. 28 trusted open source security scanners and network tools.
84
Determined: Deep Learning Training Platform | Determined AI Open source deep learning training platform that enables DL engineers to train better models, leveraging built-in hyperparameter tuning and distributed training
85
The Pale Moon Project homepage Pale Moon is an Open Source, Mozilla-derived web browser available for Microsoft Windows and Linux, focusing on efficiency and ease of use.
86
100+ Premium WordPress Themes - 2020's Best WordPress Templates Premium WordPress Themes for your website. All our WP templates are responsive and come with free installation and friendly support. Regular Updates. Guaranteed Support. Open Source Code. SEO Friendly Themes. Check it out.
87
LMMS | Home LMMS is a free, open source, multiplatform digital audio workstation.
88
Godot Engine - Free and open source 2D and 3D game engine Godot provides a huge set of common tools, so you can just focus on making your game without reinventing the wheel.
91
GitHub: Where the world builds software · GitHub GitHub is where over 50 million developers shape the future of software, together. Contribute to the open source community, manage your Git repositories, review code like a pro, track bugs and features, power your CI/CD and DevOps workflows, and secure code before you commit it.
92
Plikli CMS | Your Source for Social News and Networking Plikli is an open source content management system that lets you easily create your own user-powered website.
93
Apache OpenOffice - Official Site - The Free and Open Productivity Suite The official home page of the Apache OpenOffice open source project, home of OpenOffice Writer, Calc, Impress, Draw and Base.
94
RStudio | Open source & professional software for data science teams · RStudio RStudio provides free and open source tools for R and enterprise-ready professional software for data science teams to develop and share their work at scale.
95
ISPConfig Hosting Control Panel Manage your Servers directly through your Browser. ISPConfig 3 is an open source panel for Linux which is capable of managing multiple servers from one control panel.
96
Wikitravel - The Free Travel Guide Open source travel guide featuring up-to-date information on attractions hotels restaurants travel tips and more. Free and reliable advice written by Wikitravellers from around the globe.
97
Free Accounting Software - Akaunting Online, open source and free accounting software for small businesses. Manage your money. Get invoices paid. Track expenses. With ease!
98
Bitcoin Explorer - Blockstream.info Blockstream Explorer is an open source block explorer providing detailed blockchain data across Bitcoin, Testnet, and Liquid. Supports Tor and tracking-free.