What is Silex used for?

Silex is a free, open-source visual website builder that exports clean static HTML and CSS, positioned as a libre alternative to Webflow. It is a good fit for agencies delivering static client sites visually and freelancers replacing Webflow with an open tool.

Is Silex open source?

Yes. Silex is open source under the AGPL-3.0 licence. Its source code is on GitHub at silexlabs/Silex and is written mainly in TypeScript.

Yes. Silex is open source, so the software itself is free to use. A managed cloud version is also available.

Can I self-host Silex?

Yes. Silex can be self-hosted on your own server or infrastructure.

What is Silex an alternative to?

Silex is an open-source alternative to Webflow, Framer, Squarespace and Wix. Other open-source alternatives to Webflow include Webstudio, Microweber and WordPress.

Is Silex actively maintained?

Yes. The most recent commit to Silex was on 1 October 2026, and the latest release is v3.9.0, published on 26 July 2026. The project has 3k stars on GitHub.

Silex: open-source alternative to Webflow, Framer

About Silex

Silex is a visual builder for static websites that can also pull in dynamic data. You design pages visually and export standard HTML and CSS that can be hosted anywhere, so there is no proprietary format, forced hosting, or subscription. It is released under the AGPL-3.0 license and presented as an open alternative to Webflow.

It is maintained by Silex Labs, a non-profit organization, and describes itself as free forever with all features included and no premium tier. It follows JAMstack practices, uses the GrapesJS editor according to its topics, and can pull content from WordPress through GraphQL. An MCP server is also mentioned among the project topics, and a desktop app can be downloaded alongside the online version.

You can try Silex online or run it yourself with Node.js. It suits web agencies, WordPress developers, freelance designers, and no-code builders who want a visual workflow with output they fully own. Because the output is standard web files, learning it also builds transferable HTML, CSS, and JAMstack skills.

Key features

Visual page design with clean HTML and CSS export
Host the exported site anywhere
Dynamic data for static sites
WordPress content through GraphQL
Desktop app and online editor
Built on the GrapesJS editor

Good fit for

→Agencies delivering static client sites visually
→Freelancers replacing Webflow with an open tool

Built with: TypeScript; JavaScript; Node.js
Tags: website-builder; no-code; static-sites; jamstack; webflow-alternative; grapesjs; visual-editor; open-source

Silex: questions and answers

What is Silex used for?: Silex is a free, open-source visual website builder that exports clean static HTML and CSS, positioned as a libre alternative to Webflow. It is a good fit for agencies delivering static client sites visually and freelancers replacing Webflow with an open tool.
Is Silex open source?: Yes. Silex is open source under the AGPL-3.0 licence. Its source code is on GitHub at silexlabs/Silex and is written mainly in TypeScript.
Is Silex free?: Yes. Silex is open source, so the software itself is free to use. A managed cloud version is also available.
Can I self-host Silex?: Yes. Silex can be self-hosted on your own server or infrastructure.
What is Silex an alternative to?: Silex is an open-source alternative to Webflow, Framer, Squarespace and Wix. Other open-source alternatives to Webflow include Webstudio, Microweber and WordPress.
Is Silex actively maintained?: Yes. The most recent commit to Silex was on 1 October 2026, and the latest release is v3.9.0, published on 26 July 2026. The project has 3k stars on GitHub.