Webstudio
Open source website builder and Webflow alternative
...It connects to any headless CMS and exposes the full power of CSS within a visual interface, allowing users to fine-tune responsive behavior and styling without sacrificing flexibility. Webstudio supports both hosted usage and full self-hosting, giving organizations the option to avoid vendor lock-in. Its architecture is built around modern web standards and focuses on maintainable, high-performance output suitable for production environments. Overall, Webstudio targets teams that want a no-code or low-code experience without losing developer-level control over the final product.