If you're looking for a Webstudio alternative, Toolblox is worth a look. It's a no-code platform for building on-chain services and decentralized applications (DApps). Its visual interface and AI Assistant let you build smart contracts and DApps fast, which is great for tokenizing real-world assets and services. It has API access and DApp widgets, and offers several pricing plans, including a free trial.
Another good option is Noodl, an open-source low-code platform boosted by AI for full-stack custom apps. Noodl lets you build apps fast with visual tools and reusable modules, which makes it good for prototyping and web app scaling. Its AI system can generate building blocks and UI elements, so you don't have to write as much code, and it can link to third-party services and APIs.
If you want to build custom portals and internal tools, Softr is a flexible no-code option. It connects to data sources like Airtable and Google Sheets, and has a drag-and-drop interface with prebuilt blocks and fine-grained permission controls. Softr is designed for teams of any size, with several pricing plans to match your needs.
Last, FlutterFlow is a web-based tool to build modern apps with Firebase integration and a visual drag-and-drop interface. It has features like UI building with Flutter widgets, built-in logic, and real-time collaboration. With several pricing options, FlutterFlow is good for projects small or large, so it's a good option for developers and teams.