Alternatives to Umbraco
Compare Umbraco alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Umbraco in 2026. Compare features, ratings, user reviews, pricing, and more from Umbraco competitors and alternatives in order to make an informed decision for your business.
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1
Rocket.Chat
Rocket.Chat
Rocket.Chat is a fully customizable, open-source communications platform for organizations with high standards of data protection. It enables real-time conversations between colleagues, with other companies, or with your customers, regardless of how they want to connect with you. Compared to similar players in the industry, such as Slack and Microsoft Teams, Rocket.Chat offers an on-prem deployment that enables organizations to take full ownership of their data. Rocket. Chat's open-source nature makes it more flexible to meet specific company needs and more scalable to follow your organization's growth. It also holds the only true MIT open-source license. We have over 1000 developers across the world contributing to the open-source code. Every day, tens of millions of users in over 150 countries and in organizations such as Audi Business Innovation, Deutsche Bahn, The US Navy, and Credit Suisse trust Rocket.Chat to keep their communications completely private and secure.Starting Price: $3/user/month -
2
Open LMS
Learning Technologies Group
Open LMS leverages open-source software to deliver an effective and engaging learning experience. As the largest commercial provider of hosting and support services for the open-source Moodle™ learning platform, we help global organizations and institutions deliver great learning experiences without complexities. One of the ways Open LMS supports learning is via our commitment to open-source learning technology. The ability to deliver educational materials on a customized, branded platform is highly appealing to companies looking to teach or train students, employees, volunteers, or customers. This opens up a flexible opportunity for your organization to adapt your open-source LMS without vendor and commitment pressure. Previously a Blackboard product, Open LMS was acquired by Learning Technologies Group plc (LTG) in March 2020. -
3
Cofoundry
Cofoundry
Cofoundry is an unobtrusive ASP.NET Core CMS focused on code-first development and user-friendly content management. Run integrated, decoupled or headless, it's your choice. Cofoundry is there when you want it and gets out of your way when you don't. Get back to writing regular .NET code you love and enjoy complete freedom with your front-end technology and designs. We understand that every application is different. Cofoundry is an adaptable framework that let's you swap in your prefered tools and scale up your architecture when you need it. DI is at the heart of Cofoundry which makes it really easy to override any implementation. Plugins are easily installed via Nuget, but it’s also simple to inject your own custom implementation. CMS administration interfaces are often built to serve both developers and content editors which leads them to be complicated and full of jargon. -
4
Dynamicweb
Dynamicweb
Dynamicweb offers a cloud based eCommerce suite. We enable customers to deliver better digital customer experiences and to scale ecommerce success through our Content Management, Digital Marketing, Ecommerce, and Product Information Management solutions. Combining Content, PIM, Ecommerce and Marketing. Deliver powerful customer experiences across devices, languages and channels. Grow, optimize and drive new revenue to your B2B or B2C business. Segment and target your customers, then personalize and automate your marketing. Reduce complexity, re-use data and take control of your product information. Optimize processes, expose business logic and ensure data consistency. Turnkey ecommerce solutions for Dynamics NAV, AX and 365. -
5
Xperience by Kentico
Kentico Software
Kentico is an award-winning provider of digital experience platforms that enable businesses to drive better outcomes with fewer resources by delivering multichannel digital experiences using a hybrid headless approach. Its digital experience platform (DXP), Xperience by Kentico, minimizes overhead by focusing on real customer needs. With a wide set of capabilities, it empowers teams to deliver better customer experiences through multiple channels faster. Thanks to Kentico, marketers can craft consistent personalized customer journeys from awareness to advocacy using built-in low-code, no-code tools. They can experiment with new marketing channels and improve the maturity of their marketing ecosystem, while enhancing business and marketing agility. Kentico offers excellent Time-to-Market and Total Cost of Ownership (TCO), market-leading support, SaaS or on-premises deployment, and is backed by a global network of implementation partners.Starting Price: $11,880 / year -
6
Orchard Core
Orchard CMS
Open-source, modular, multi-tenant application framework and CMS for ASP.NET Core. Define custom media types and add custom metadata like taxonomies, copyright, author information and more. The content can be translated in any language, and elements of information can also be shared across languages. Every feature is a module which can be enabled, disabled or replaced. If you don't like what you see you can replace it with your own feature. A single installation lets you manage multiple sites. The notion of Recipe lets you write reusable websites templates. Define roles and permissions for all your users. Track changes and see the history of your content. Create content workflow or react to events. -
7
Piranha CMS
Piranha CMS
Piranha is designed for small to medium sized applications with the rare users in mind. With its decoupled architecture it can be used as both an integrated CMS or as a headless content store for your Apps. Write and design beautiful, responsive content with ease using our powerful block editor. Write and design beautiful, responsive content with ease using our powerful block editor. Write and design beautiful, responsive content with ease using our powerful block editor. Built-in media library with scaling and cropping without losing focus of the important parts of you images. You can add your own pages, extend the existing with custom actions or even replace the standard components with your own. No matter what server-side technology you choose, all of the shared components can be referenced from your custom pages. -
8
Titan CMS
Northwoods
Titan CMS is an easy-to-use, flexible enterprise content management system that’s trusted by thousands of users at companies of all sizes and industries who rely on it to drive exceptional digital experiences across a variety of digital platforms, including public websites, intranets, extranets, and portals. Titan CMS caters to a diverse audience, ranging from small organizations to large enterprises, including Fortune 500 companies. By leveraging the industry-standard Model-View-Controller (MVC) architecture within the .NET Framework, Titan CMS provides an intuitive and efficient content management workstation interface that enables users to produce visually appealing, user-friendly, and high-performance websites. With Titan CMS, you get direct access to the digital experts who built it, manage it and continually enhance it. We get to know you and your business so both our team and our tool can help you achieve your goals.Starting Price: $9500.00/one-time -
9
iPlasmaCMS2
Insercorp
iPlasmaCMS2 is a proprietary website content management system suited for website administrators from beginners to advanced users. Developed with modern web technologies, the modular system allows for management of any type of website, web-based application, or intranet. Its scalability allows for the deployment of a single, basic website to highly complex networks of interconnected websites. iPlasmaCMS2 is the perfect solution for any type of organization, from businesses and non-profit organizations to government and educational institutions.Starting Price: $450.00/year -
10
Apache Lucene
Apache Software Foundation
The Apache Lucene™ project develops open-source search software. The project releases a core search library, named Lucene™ core, as well as PyLucene, a python binding for Lucene. Lucene Core is a Java library providing powerful indexing and search features, as well as spellchecking, hit highlighting and advanced analysis/tokenization capabilities. The PyLucene sub project provides Python bindings for Lucene Core. The Apache Software Foundation provides support for the Apache community of open-source software projects. Apache Lucene is distributed under a commercially friendly Apache Software license. Apache Lucene set the standard for search and indexing performance. Lucene is the search core of both Apache Solr™ and Elasticsearch™. Our core algorithms along with the Solr search server power applications the world over, ranging from mobile devices to sites like Twitter, Apple and Wikipedia. The goal of Apache Lucene is to provide world class search capabilities. -
11
ispCP
ispCP
ispCP (Internet Service Provider Control Panel) is an open-source project founded to build a multi-server control and administration panel. The ispCP Omega release is completely based on the original open-source VHCS project. All new code, and submissions to ispCP Omega are licensed under the GNU General Public License (V2). Rather than start a project from scratch, the team searched for existing open-source implementations and decided to fork the dying virtual hosting control panel (VHCS) project. This community effort to continue on the work of VHCS lead to the creation of ispCP Omega. The ispCP Omega release is completely based on the original open-source VHCS project. Because part of the ispCP dev team were core members of the dead VHCS project, Malte (ephigenie) and Benedikt (RatS) felt an obligation to offer the desperate community a way to migrate to ispCP. This led to the creation of ispCP Omega, a migration path from VHCS to ispCP. -
12
FreeMED
FreeMED Software Foundation
FreeMED is an open-source electronic medical record and practice management system which has been developed since 1999. It was developed under the GPL, and remains free and open for all to modify and use. The FreeMED Software Foundation is a 501©(3) non-profit corporation, whose primary goal is the betterment of the open-source software community and the world in general through promoting the development and adoption of FreeMED and other open-source medical software projects. If you are interested in more information about the FreeMED Software Foundation or would like to inquire about serving on the Board of Directors or Clinical Advisory Committee, please contact us. The FreeMED Software Foundation maintains and develops FreeMED and other related software, including REMITT, an open source billing and remittance package, and many others. All software developed by the Foundation can be seen on Github, including FreeMED and REMITT. -
13
Redmineflux
Redmineflux
Redmineflux is a comprehensive project management solution and an extension of the open-source Redmine, which includes over 18 plugins and 2 themes to enhance Redmine's core capabilities. -
14
Mono
Mono
Cross-platform, open source .NET framework. Sponsored by Microsoft, Mono is an open-source implementation of Microsoft's .NET Framework as part of the .NET Foundation and based on the ECMA standards for C# and the common language runtime. A growing family of solutions and an active and enthusiastic contributing community is helping position Mono to become the leading choice for the development of cross-platform applications. The latest Mono release is waiting for you. We cover everything you need to know, from configuring Mono to how the internals are implemented. Our documentation is open source too, so you can help us improve it. As an open-source project, we love getting contributions from the community. File a bug report, add new code or chat with the developers. Mono is a software platform designed to allow developers to easily create cross-platform applications.Starting Price: Free -
15
RedPajama
RedPajama
Foundation models such as GPT-4 have driven rapid improvement in AI. However, the most powerful models are closed commercial models or only partially open. RedPajama is a project to create a set of leading, fully open-source models. Today, we are excited to announce the completion of the first step of this project: the reproduction of the LLaMA training dataset of over 1.2 trillion tokens. The most capable foundation models today are closed behind commercial APIs, which limits research, customization, and their use with sensitive data. Fully open-source models hold the promise of removing these limitations, if the open community can close the quality gap between open and closed models. Recently, there has been much progress along this front. In many ways, AI is having its Linux moment. Stable Diffusion showed that open-source can not only rival the quality of commercial offerings like DALL-E but can also lead to incredible creativity from broad participation by communities.Starting Price: Free -
16
Windows Terminal
Microsoft
The Windows Terminal is a modern, fast, efficient, powerful, and productive terminal application for users of command-line tools and shells like Command Prompt, PowerShell, and WSL. Its main features include multiple tabs, panes, Unicode and UTF-8 character support, a GPU-accelerated text rendering engine, and custom themes, styles, and configurations. This is an open-source project and we welcome community participation. Multiple tabs, full Unicode support, and GPU-accelerated text rendering. Full customizability and split panes. Install the Windows Terminal from the Microsoft Store. This allows you to always be on the latest version when we release new builds with automatic upgrades. It includes many of the features most frequently requested by the Windows command-line community including support for tabs, rich text, globalization, configurability, theming & styling, and more. The Terminal will also need to meet our goals and measures to ensure it remains fast and efficient.Starting Price: Free -
17
Incisive Software
Incisive Software
In today’s business landscape, managing spreadsheet risk and navigating the proliferation of low-code/no-code platforms and open-source tools is critical. However, while these resources offer immense business value, each instance presents potential risks such as inaccuracies, outdated data, and compatibility issues with your core production systems. If your IT team is unaware of the extent of low-code/no-code deployments and open-source software being used within your organization, it can put your business at risk. With Incisive Analytics Essentials, you gain the knowledge and power to identify, manage, and mitigate these risks. Navigate the chaos of the "unknown unknowns" and gain up-to-date knowledge about-and management of-critical analytics assets such as spreadsheets, low-code/no-code and open-source applications. Ensure accurate, consistent and secure analysis of critical spreadsheets, low-code/no-code and open-source applications. -
18
Concourse
Incisive Software
Incisive’s Analytics Essentials Platform provides a robust framework for managing low-code/no-code, spreadsheets, and open-source deployments. The platform's core, Concourse, centralizes the control, knowledge, and management of various analytic assets, enhancing oversight. Features such as advanced discovery, search, and filter capabilities allow users to inventory assets across their network quickly. Change management and continuous monitoring functions ensure that deployments remain secure and compliant, while flexible asset management, alerting, and notifications add layers of control. Alongside Concourse, our Xcellerator tool works within Microsoft Excel to ensure accuracy in traditional spreadsheets. The emphasis on security, compliance, and trustworthy data makes Incisive Analytics Essentials an essential asset for organizations aiming to navigate the complexities of modern data management and maintain a strong foundation based on accuracy and control. -
19
Visual Basic
Microsoft
Visual Basic is an object-oriented programming language developed by Microsoft. Using Visual Basic makes it fast and easy to create type-safe .NET apps. Visual Basic focuses on supplying more of the features of the Visual Basic Runtime (microsoft.visualbasic.dll) to .NET Core and is the first version of Visual Basic focused on .NET Core. Many portions of the Visual Basic Runtime depend on WinForms and these will be added in a later version of Visual Basic. .NET is a free, open-source development platform for building many kinds of apps. With .NET, your code and project files look and feel the same no matter which type of app you're building. You have access to the same runtime, API, and language capabilities with each app. A Visual Basic program is built up from standard building blocks. A solution comprises one or more projects. A project in turn can contain one or more assemblies. Each assembly is compiled from one or more source files.Starting Price: Free -
20
Internxt
Internxt
Internxt is a secure cloud storage company committed to redefining how individuals and businesses manage their data. With a strong focus on security, privacy, and innovation, Internxt offers a range of innovative and safe storage solutions designed to empower users with flexible and user-friendly data management tools. Our open-source, end-to-end encrypted, zero-knowledge cloud storage services and a commitment to user privacy make Internxt a trusted partner for safeguarding digital assets. We pride ourselves on delivering top-quality products and services, prioritizing data security and accessibility. With a global presence and a dedication to excellence, Internxt is at the forefront of the digital data revolution, providing reliable and innovative solutions for the modern age. Internxt Drive offers up to 1GB of free storage space with up to 10TB of paid monthly, annual, or lifetime plans.Starting Price: €4.99 per month -
21
ccminer
ccminer
ccminer is an open-source project for CUDA compatible GPUs (nVidia). The project is compatible with both Linux and Windows platforms. This site is intended to share cryptocurrencies mining tools you can trust. Available open-source binaries will be compiled and signed by us. Most of these projects are open-source but could require technical abilities to be compiled correctly. -
22
Apache Subversion
Apache Software Foundation
Welcome to subversion, the online home of the Apache® Subversion® software project. Subversion is an open-source version control system. Founded in 2000 by CollabNet, Inc., the Subversion project and software have seen incredible success over the past decade. Subversion has enjoyed and continues to enjoy widespread adoption in both the open-source arena and the corporate world. Subversion is developed as a project of the Apache Software Foundation, and as such is part of a rich community of developers and users. We're always in need of individuals with a wide range of skills, and we invite you to participate in the development of Apache Subversion. Subversion exists to be universally recognized and adopted as an open-source, centralized version control system characterized by its reliability as a safe haven for valuable data; the simplicity of its model and usage; and its ability to support the needs of a wide variety of users and projects. -
23
Bioconductor
Bioconductor
The Bioconductor project aims to develop and share open source software for precise and repeatable analysis of biological data. We foster an inclusive and collaborative community of developers and data scientists. Resources to maximize the potential of Bioconductor. From basic functionalities to advanced features, our tutorials, guides, and documentation have you covered. Bioconductor uses the R statistical programming language and is open source and open development. It has two releases each year and an active user community. Bioconductor provides Docker images for every release and provides support for Bioconductor use in AnVIL. Founded in 2001, Bioconductor is an open-source software project widely used in bioinformatics and biomedical research. It hosts over 2,000 R packages contributed by over 1,000 developers, with over 40 million downloads per year. Bioconductor has been cited in more than 60,000 scientific publications.Starting Price: Free -
24
Healthy Package AI
DerScanner
Healthy Package AI by DerScanner is a handy solution designed to ensure the health and security of open-source packages, safeguarding your application from potential threats. By leveraging the power of DerScanner, which has examined over 100 million packages, developers can confidently evaluate open-source dependencies before integrating them into their projects. With Healthy Package AI, you can explore detailed insights, starting with just a GitHub URL or package name, such as Facebook React. The platform analyzes several critical metrics to provide a complete security assessment, including: Search Popularity: Identifies widely used and trusted libraries that are reliable for your projects. Author’s Reliability: Evaluates the authorship of projects to ensure contributors are experienced and trustworthy, mitigating risks from malicious developers.Starting Price: Free -
25
OGRE
OGRE
Since 2001, OGRE has grown to become one of the most popular open-source graphics rendering engines, and has been used in a large number of production projects, in such diverse areas as games, simulators, educational software, interactive art, scientific visualisation, and others. OGRE supports Windows (all major versions), Linux, OSX, Android, iOS, Javascript (via EMScripten), Windows Phone (Sponsored by Microsoft) and WinRT. Also, OGRE was ported to PS3 and Xbox360 for several titles. Ogre is released under the MIT License, which is a permissive open source license. The only condition is that you distribute the license text included in our distribution with any software that uses OGRE. Learn OGRE using our series of introducatary Tutorials. Of course the OGRE team provides official documentation in form of the OGRE Manual and API documentation. -
26
Scira AI
Scira AI
Scira is a minimalistic, open-source AI-powered search engine that combines retrieval-augmented generation (RAG) and search grounding to provide accurate, up-to-date answers from trusted sources. Built with advanced AI models such as Grok, OpenAI GPT, Claude, Gemini, and more, it delivers reliable responses across diverse queries. The platform supports complex question understanding, image analysis, smart calculations, and academic research assistance. With over 100,000 active users and a vibrant developer community, Scira is designed for everyone—from students and researchers to professionals. Users can access free plans with essential features or upgrade to Pro for unlimited usage and PDF analysis. Scira’s transparency and integration with cutting-edge AI frameworks make it a trusted tool for smarter searching.Starting Price: Free -
27
Open Content Platform
Open Content Platform
Open Content Platform (OCP) is an open-source IT discovery and integration platform. OCP handles discovery, integration, and modeling for solutions in the datacenter. The core framework is micro-service, enabling process-level horizontal scalability. It’s fully extensible, designed for developers, and leverages components in the open-source space, to greatly reduce product complexity. The dynamic discovery is fundamentally different from other ITSM vendors, and the data-driven modeling keeps Applications and Services up-to-date for downstream consumption (e.g. Service-aware monitoring).Starting Price: $0 -
28
PrusaSlicer
Prusa Research
PrusaSlicer is our own in-house developed slicer software based on the open-source project Slic3r. PrusaSlicer is an open-source, feature-rich, frequently updated tool that contains everything you need to export the perfect print files for your original Prusa 3D printer. PrusaSlicer is based on Slic3r by Alessandro Ranellucci. It's completely free and open-source. Thanks to the strong community and core team of developers in Prusa Research we can continually add new functionality. You can follow the development process on Github. Paint custom supports directly on the model! Or block automatically generated supports in selected areas. You can also use custom meshes as support blockers and enforcers. Everything is neatly saved in the project file, always customizable. Testers and developers at Prusa Research are constantly working on presets for 150+ filaments and resins. We are adding profiles on regular basis, following materials by the most popular manufacturers. -
29
Azure HDInsight
Microsoft
Run popular open-source frameworks—including Apache Hadoop, Spark, Hive, Kafka, and more—using Azure HDInsight, a customizable, enterprise-grade service for open-source analytics. Effortlessly process massive amounts of data and get all the benefits of the broad open-source project ecosystem with the global scale of Azure. Easily migrate your big data workloads and processing to the cloud. Open-source projects and clusters are easy to spin up quickly without the need to install hardware or manage infrastructure. Big data clusters reduce costs through autoscaling and pricing tiers that allow you to pay for only what you use. Enterprise-grade security and industry-leading compliance with more than 30 certifications helps protect your data. Optimized components for open-source technologies such as Hadoop and Spark keep you up to date. -
30
VSCodium
VSCodium
Microsoft’s vscode source code is open source (MIT-licensed), but the product available for download (Visual Studio Code) is licensed under this not-FLOSS license and contains telemetry/tracking. The VSCodium project exists so that you don’t have to download+build from source. This project includes special build scripts that clone Microsoft’s vscode repo, run the build commands, and upload the resulting binaries for you to GitHub releases. These binaries are licensed under the MIT license. Telemetry is disabled. Note for Mac OS X Mojave users, if you see “App can’t be opened because Apple cannot check it for malicious software” when opening VSCodium the first time, you can right-click the application and choose Open. This should only be required the first time opening on Mojave. The most up-to-date information on migrating from Visual Studio Code and other quirks you might encounter are documented. -
31
Airy Messenger
Airy
From Conversational AI assistants to customer service experiences, own your own conversational platform with open-source Airy. Airy Core is an open source, fully-featured, production-ready conversational platform. With Airy you can process conversational data from a variety of sources. Since Airy's infrastructure is built around Apache Kafka, it can process a large amount of conversations and messages simultaneously and stream the relevant conversational data to wherever you need it. Connect anything from our free open-source live chat plugin to Facebook Messenger & Google's Business Messages to your Airy Core. This is all possible through an ingestion platform that heavily relies on Apache Kafka to process incoming webhook data from different sources. We make sense of the data and reshape it into source-independent contacts, conversations, and messages. -
32
IBM Granite
IBM
IBM® Granite™ is a family of artificial intelligence (AI) models purpose-built for business, engineered from scratch to help ensure trust and scalability in AI-driven applications. Open source Granite models are available today. We make AI as accessible as possible for as many developers as possible. That’s why we have open-sourced core Granite Code, Time Series, Language, and GeoSpatial models and made them available on Hugging Face under permissive Apache 2.0 license that enables broad, unencumbered commercial usage. All Granite models are trained on carefully curated data, with industry-leading levels of transparency about the data that went into them. We have also open-sourced the tools we use to ensure the data is high quality and up to the standards that enterprise-grade applications demand.Starting Price: Free -
33
Jobberbase
Jobberbase
Jobberbase is an open-source job board platform that enables the creation of job sites. For comparison, Jobberbase is for job sites what WordPress is for blogs. Since launch, Jobberbase was downloaded more than 100,000 times. Jobberbase was the first open-source job board platform, a breath of fresh air in a world where all other similar software was legacy, ugly and paid-for, thus challenging the status quo. Over the next few years, Jobberbase gained popularity and a few core contributors, most notably Lavi & Cosmin Mendrea and Radu Lucaciu who were also heavily involved in the community, helping people out. Other developers started to make a living by customising and extending Jobberbase for their clients. New visual themes were created, etc. We've since launched version 2.0 with significant changes and many additions. -
34
OpenToonz
DWANGO
Based on the software "Toonz", developed by Digital Video S.p.A. in Italy, OpenToonz has been customized by Studio Ghibli, and used for the creation of its works for many years. Dwango has launched the OpenToonz project in cooperation with Digital Video and Studio Ghibli. OpenToonz can be used free of charge for both commercial and non-commercial projects. Available as an open-source so that anyone can modify its source code freely. We aim to develop a new platform for connecting the academic research with cutting edge animation production. -
35
FreeMoCap
FreeMoCap
The Free Motion Capture Project (FreeMoCap) aims to provide research-grade markerless motion capture software to everyone for free. We're building a user-friendly framework that connects an array of `bleeding edge` open-source tools from the computer vision and machine learning communities to accurately record full-body 3D movement of humans, animals, robots, and other objects. We want to make the newly emerging mind-boggling, future-shaping technologies that drive FreeMoCap's core functionality accessible to communities of people who stand to benefit from them. We follow a “Universal Design” development philosophy, with the goal of creating a system that serves the needs of a professional research scientist while remaining intuitive to a 13-year-old with no technical training and no outside assistance.Starting Price: Free -
36
OpenBSD
OpenBSD
OpenBSD is developed entirely by volunteers. The project's development environment and developer events are funded through contributions collected by The OpenBSD Foundation. Contributions ensure that OpenBSD will remain a vibrant and free operating system. Hence the OpenBSD project has embedded cryptography into numerous places in the operating system. We require that the cryptographic software we use be freely available and with good licenses. We do not directly use cryptography with nasty patents. We also require that such software is from countries with useful export licenses because we do not wish to break the laws of any country. Be as politics-free as possible; solutions should be decided on the basis of technical merit.Starting Price: Free -
37
NVU
NVU
A complete web authoring system for Linux Desktop, Microsoft Windows and Macintosh users to rival programs like FrontPage and Dreamweaver. Nvu (pronounced N-view, for a "new view") makes managing a website a snap. Now anyone can create web pages and manage a website with no technical expertise or knowledge of HTML. Nvu and KompoZer are free, open-source solutions, and are community-supported. If you are having a problem with Nvu or KompoZer, then visit and look for help. NVU 1.0, released in June 2005, is the last official release that you will find at most download sites, however, it isn't the newest or best version of the Nvu software. An unofficial bugfix/update called "KompoZer" is available here. KompoZer is not a cure-all for all the bugs in NVU 1.0, but it does fix some of the major annoyances. If you use NVU 1.0 and it works for you, stick with it. But if you run into problems, give KompoZer a try and see if it helps. -
38
artoolkitX
artoolkitX
ARToolKit was first released as an open source project in 2001. Under the ownership of ARToolworks, it continued with an open source variant until 2015 when it was sold. Noting the lack of activity on the ARToolKit forum in the fall of 2017 and fearing for the future of this iconic project, Ben Vaughan and Phil Lamb, the former CEO and CTO of ARToolworks, created artoolkitX to ensure that the software is developed and maintained and the vibrant ARToolKit community continues to be supported. artoolkitX is supported by Realmax Inc, a leading Chinese AR company that is developing groundbreaking AR hardware and software. -
39
Mongoose OS
Cesanta
Mongoose OS is open source and comes in two editions: Community and Enterprise. Reliable Over-The-Air updates Secure device provisioning Remote management. Trusted, field-tested, proven performance. Open source under Apache 2.0 license. Commercial licensing & support are available. integrated into thousands of commercial products deployed to hundreds of millions of devices in production environments. Mongoose OS is Google Cloud IoT Core Partner. Microsoft Azure IoT recommends Mongoose OS for OTA, automatic device management and deploying firmware updates at scale. 'Microsoft Developer: The IoT Show' demonstrates on how to update the firmware of devices running Mongoose OS over-the-air with The Azure IoT Hub Automatic Device Management. Google Cloud IoT Core uses MQTT for communication.Starting Price: $0.89 per unit -
40
XSharp (X#)
XSharp
X# is an open-source development language for .NET, based on the xBase language. It comes in different flavors, such as Core, Visual Objects, Vulcan.NET, xBase++, Harbour, Foxpro, and more. X# has been built on top of Roslyn, the open-source architecture behind the current Microsoft C# and Microsoft Visual Basic compilers. We have added a new options page (tools/options/text editor/X#) where you can control which suggestions the editor will suggest in the "general" code completion list. Code completion after a colon or dot will show namespaces, types, members, etc. And code completion after AS or IS will show types and namespaces. Several preprocessor fixes to make the preprocessor more compatible with FoxPro and Xbase++. We have also added the #if and #stdout commands. We added several smaller fixes in the RDD system to improve the compatibility with Visual Objects, XBase++ and FoxPro.Starting Price: Free -
41
OpenFinex
Openware
OpenFinex™ is a proprietary private open-source software with machine learning components, designed to facilitate rapid and focused order matchmaking of the enterprise-grade trading environment. OpenFinex™ marketplace platform is one of the most high-performing order matching engines in the world, handling over 500,000 orders per second. The architecture of OpenFinex™ is designed as an open-source cloud platform, seamlessly merging into new and existing business models. OpenFinex™ is developed entirely on Go to ensure swift performance, transaction security, project scaling, and flexibility in future development. OpenFinex™ order matching platform is also available as the modular component of the OpenDAX Enterprise stack. OpenFinex™ is a fast, efficient and flexible marketplace platform to power up your stocks & commodities market, booking & betting service, or the exchange service of Bitcoin, cryptocurrencies, digital assets, and ERC security tokens. -
42
Open R1
Open R1
Open R1 is a community-driven, open-source initiative aimed at replicating the advanced AI capabilities of DeepSeek-R1 through transparent methodologies. You can try Open R1 AI model or DeepSeek R1 free online chat on Open R1. The project offers a comprehensive implementation of DeepSeek-R1's reasoning-optimized training pipeline, including tools for GRPO training, SFT fine-tuning, and synthetic data generation, all under the MIT license. While the original training data remains proprietary, Open R1 provides the complete toolchain for users to develop and fine-tune their own models.Starting Price: Free -
43
bbbserver
invokable GMBH
bbbserver is a privacy-focused video conferencing software based on the open-source BigBlueButton platform. As a premium BBB hosting provider, bbbserver significantly extends the core software with proprietary features, AI, administrative tools, and usability. Hosted on European servers, it ensures GDPR compliance and gives users full control over meeting data with transparent data flows. The platform supports collaboration with features like breakout rooms, screen sharing, moderation controls, and structured meeting management. Virtual whiteboards and interactive tools enhance remote learning, while role-based access control ensures secure communication. bbbserver operates via a browser-based interface, eliminating the need for installation. Optional recording capabilities remain under organizational control, accommodating various formats from team meetings to webinars. Combining security, GDPR compliance, and collaborative tools, bbbserver offers a robust video conferencing solution.Starting Price: 8,33€/month -
44
OpenJDK
Oracle
The place to collaborate on an open-source implementation of the Java platform, standard edition, and related projects. Download and install the latest open-source JDK. Oracle’s free, GPL-licensed, production-ready OpenJDK JDK 21 binaries for Linux, macOS, and Windows are available, Oracle’s commercially-licensed JDK 21 binaries, based on the same code, are available as well. Browse the code on the web, clone a repository to make a local copy, and contribute a patch to fix a bug, enhance an existing component, or define a new feature. OpenJDK provides source code that developers can use to build their binaries. Consequently, users are responsible for compiling the code and generating the Java runtime tailored to their specific platform. The JDK is a complex software project. Building it requires a certain amount of technical expertise, a fair number of dependencies on external software, and reasonably powerful hardware.Starting Price: Free -
45
eLxr
eLxr
Enterprise-Grade Linux for Edge-to-Cloud Deployments. Open-Source Collaborative Project, Debian-based Linux distribution tailored for edge to cloud use cases. Ensure consistent performance and stability, whether on device, on-prem, or in the cloud. eLxr provides a secure and stable distribution, with its foundation in opensource community innovation with predictable release and update cadence, fit for long lifecycles and long-term deployments. Cater to applications with stringent timing requirements, using preempt-rt kernel configurations to prioritize low-latency responses, ensuring that tasks are executed within precise time boundaries. Achieve better determinism and predictability compared to a standard Linux kernel. eLxr relies on a smaller footprint for better performance, optimized workloads, and smaller attack surface for resource usage efficiency. It provides all required features and attributes, considering best usage of system resources.Starting Price: Free -
46
Planka
Planka
Planka is an elegant, open source project tracking tool designed to facilitate efficient project management and collaboration. It offers a user-friendly interface that enables teams to organize tasks, track progress, and manage workflows effectively. Users can experience its functionality through a live demo available on the website. Planka provides comprehensive installation guides, including Docker-based, automated, and manual installation options, catering to various user preferences and technical requirements. It is licensed under AGPL-3.0, ensuring that it remains free and open for community use and contribution.Starting Price: Free -
47
Scarf
Scarf
Scarf is a platform designed to provide open-source project maintainers with detailed analytics on how their software is being used. By offering usage insights such as which companies are interacting with your project, how often they download packages, and which versions they use, Scarf helps improve targeting for sales and marketing. It identifies potential customers among open-source users through Open Source Qualified Leads (OQLs), enabling businesses to optimize their outreach efforts. Scarf also integrates with various third-party platforms to maximize the potential of the data it provides. -
48
MacPorts
MacPorts
The MacPorts Project is an open-source community initiative to design an easy-to-use system for compiling, installing, and upgrading either command-line, X11, or Aqua-based open-source software on the Mac operating system. To that end, we provide the command-line driven MacPorts software package under a 3-Clause BSD License, and through it easy access to thousands of ports that greatly simplify the task of compiling and installing open-source software on your Mac. We provide a single software tree that attempts to track the latest release of every software title (port) we distribute, without splitting them into “stable” vs. “unstable” branches, targeting mainly macOS Mojave v10.14 and later (including macOS Monterey v12 on both Intel and Apple Silicon). There are thousands of ports in our tree, distributed among different categories, and more are being added on a regular basis.Starting Price: Free -
49
Magma
Meta Platforms
Communications service providers leverage Magma's open network core solution to connect people using LTE, 5G, Wi-Fi, and beyond. A cost-effective, open, flexible, and commercial-grade EPC. Meta Connectivity is a development contributor to Magma, an Evolved Packet Core (EPC) that enables Communication Service Providers (CSPs) to deliver fast, reliable internet connectivity with innovative features that only a robust open-source community of developers can bring. Magma is an open-source software platform enabling operators to easily deploy mobile networks in hard-to-reach areas at a price point that makes sense. When working with qualified partners to deploy and operate Magma, CSPs can rest assured that their most stringent requirements are met. Magma is vendor, hardware, and network agnostic. CSPs can use what makes sense for them from radio access network (RAN) equipment to commodity hardware to licensed or un-licensed spectrum. -
50
RStudio
Posit
RStudio IDE is a powerful integrated development environment built for data scientists using R and Python; it features a console, syntax-highlighting editor supporting direct code execution, plotting, history management, debugging tools, and workspace controls. The open source edition runs on Windows, Mac, and Linux desktops and includes code completion, smart indentation, Visual Markdown editing, project-based working directories, integrated support for multiple working directories, R help and documentation search, interactive debugging, and extensive tools for package development, all under the AGPL v3 license. While the open version provides core capabilities for coding and data exploration, commercial editions add enterprise-grade features like database/NoSQL connections, priority support, and commercial licensing options. RStudio IDE empowers users to analyze data, build visualizations, develop packages, and produce reproducible workflows in a trusted open-source environment.Starting Price: $1,163 per year
