No, Webflow is not open source. It is a proprietary platform, developed and maintained by the company Webflow. It offers a visual, no-code approach to web design and development, but its source code is not available to the public.
Webflow does, however, have some characteristics of an open source system. They make it appealing to designers, developers and marketers looking for this type of solution.
Webflow is not a completely closed system
Webflow is not open source, but some of its features come close. Others clearly keep it on the proprietary side.
Open features
Here are the features that give Webflow the feel of an open source tool.
Custom code integration
Webflow lets you insert custom HTML, CSS and JavaScript code into a project. This level of customization is reminiscent of open source platforms and lets developers extend the functionality of their site.
API access
Webflow provides API access to interact with your site programmatically. Developers can build custom integrations and automate tasks, as with open source systems that offer extensive APIs.
Custom CMS
Webflow's CMS (Content Management System) lets users define their own custom content structures and manage dynamic content.
Third-party integrations
Webflow connects to many third-party services and tools, such as payment gateways, analytics platforms and marketing automation systems.
Template customization
You can start from a Webflow template and customize it extensively to fit your needs. Combined with the ability to edit code and styles, this approach offers more design and layout freedom than most open source themes and templates.
Collaboration
Webflow offers collaboration features that let several people work on a project at the same time. This way of working is reminiscent of open source communities, where contributors improve projects together.
Code export
Webflow lets you export your site's code, including HTML, CSS and JavaScript. Developers can then host this code on their own servers, with a portability close to that of open source solutions.
Closed features
Webflow nonetheless remains a closed system. Here are the reasons why it is not an open source platform.
Closed source code
Webflow's source code is neither public nor editable. In an open source project, anyone can contribute to the codebase. At Webflow, the code is tightly controlled by the development team.
Subscription model
Webflow works on a subscription basis. Users pay to access the platform's features and hosting. Open source software is usually free and can be self-hosted with no license cost.
Limited customization
Webflow offers a high degree of customization through its visual interface, but it has its limits compared with open source platforms. With an open source solution, developers have more control over the code and can adapt it in depth to specific requirements.
Webflow hosting
Webflow's hosting is proprietary and tightly integrated into the platform. Open source solutions, by contrast, leave you free to choose your hosting provider.
Advantages of Webflow over open source builders
Here are the main advantages of Webflow compared with its open source counterparts.
User-friendly interface
Webflow's intuitive interface lets you design and build a site without knowing how to code. It is therefore accessible to a wider audience, including designers with limited technical knowledge.
All-in-one solution
Webflow brings design, development, hosting and content management together in a single environment. You do not have to find and assemble several third-party tools and plugins.
Streamlined workflow
With Webflow, you design, develop and host your site on a single platform. Compatibility issues between tools decrease and the whole site creation process gets simpler.
Reliable hosting
Webflow's hosting ensures fast load times and stable performance. Open source platforms often require users to find and manage their own hosting solution.
Efficiency
Webflow's integrated approach saves time and effort. You focus on design and content, and spend less time solving technical problems.
Security
Webflow handles security updates and maintenance. The risk of a vulnerability is therefore lower than on an open source platform, where these tasks fall to the user.
Professional results
Thanks to its design and development features, Webflow lets you quickly create a professional-quality site, even without coding expertise.
Clean code
This may be the most important feature. Webflow generates clean code. On open source tools, third-party widgets often clutter the code, which makes sites slow and unresponsive.
Webflow and external integrations, is it possible?
Since Webflow is a closed system, you might think it integrates poorly with external tools and services.
It does not have the flexibility of some open source CMSs, but it remains fairly open, and many tools can connect to it to help you build and maintain your site.
So it is possible to use and integrate external systems, and it is even quite common.
Webflow can for example be connected to HubSpot, a widely used CRM platform. Integrating HubSpot with Webflow brings concrete benefits, such as better contact form management, consistent design between your marketing tools and your site, and a fast integration. It is an effective combination for your digital marketing strategy.
Conclusion, should you use Webflow?
Webflow is not for everyone. It is mainly aimed at people who want to build sites without focusing too much on code, while keeping the flexibility of a fully coded site.
It also suits organizations that want a site that runs and is maintained without tying up a lot of development resources. Its intuitive interface makes it easy to create and publish entire content collections.
Webflow is a paid solution. To publish a site on a custom domain and access all its capabilities, you will need to choose one of the paid plans. The basic plan remains free and gives access to the main site building tool, the Webflow Designer. If your budget is really tight, though, you are better off considering an alternative.
If you choose Webflow and need professional support, contact our Webflow experts. We help you build an engaging site that turns your visitors into leads and customers.