SensioLabs is Full in Open Source
As the creator of Symfony and a leader in the open-source community, SensioLabs is dedicated to building, supporting, and advancing the tools that power the digital world. From driving innovation to ensuring security, open source is at the heart of everything we do.
Creator of Symfony
SensioLabs is the proud creator of Symfony, one of the most powerful and widely-used PHP frameworks in the world. Our contributions to the open-source community are vast, and Symfony is a testament to the success of our open-source approach, powering countless websites and applications across industries.

What is Open Source?
Why Open Source is Good for Your Project:
Best Quality
Open-source projects benefit from constant review and contributions from top developers around the world. This ensures that the software is of the highest quality, continuously evolving, and incorporates the latest technology standards.
On the Shoulders of Giants
When you build with open source, you’re benefiting from decades of development and innovation. You don’t need to start from scratch—open-source software provides a strong, proven foundation for any project.
Best Developers Are Here
The most passionate and skilled developers gravitate towards open-source projects. At SensioLabs, we work with some of the best developers in the world, all driven by a passion for creating the best open-source tools and technologies.
Join the Open Source Movement with SensioLabs
Ready to contribute to the future of Symfony and secure web development? SensioLabs invites you to participate in our open-source projects. Let’s work together to drive innovation and enhance security for everyone.
Frequently Asked Questions
- What is the main advantage of using open-source software for my business?
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Open-source software offers flexibility, transparency, and security. It allows businesses to customize solutions, benefit from global collaboration, and avoid the restrictions of proprietary software, all while ensuring access to the latest innovations.
- How does SensioLabs contribute to open-source projects?
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SensioLabs actively contributes to the open-source community by developing and maintaining Symfony, as well as other tools like Blackfire and SymfonyInsight. Our team also participates in events, shares knowledge, and collaborates with global developers to enhance open-source projects.
- Is open-source software secure?
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Yes, open-source software is often more secure than proprietary alternatives. The transparency of the code allows for continuous peer reviews, meaning vulnerabilities are quickly identified and resolved by the global community.
- Can open-source software be customized for my specific needs?
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Absolutely! Open-source software is designed to be flexible and customizable. SensioLabs can tailor open-source solutions like Symfony to meet your exact business requirements, ensuring a solution that fits perfectly with your project goals.
- How does using open-source software affect long-term costs?
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Open-source software helps reduce long-term costs by eliminating licensing fees and providing access to a wealth of free tools and resources. Additionally, open-source solutions are continuously improved by the community, ensuring your software stays up to date without incurring extra fees.