Enterprise development teams are under constant pressure. Demand for complex applications keeps growing, developer capacity remains scarce, and architectural requirements are becoming stricter. Low-code promises speed, but too often at the cost of flexibility, control, and long-term freedom.
Today, we’re excited to introduce Wasm-based Actions in Betty Blocks, a major step forward in making low-code truly open for every programming language, extensible, and portable.
The challenge with tradition low-code actions
In most low-code platforms, actions are built on proprietary technology. They work well inside the platform, but once your business logic grows more complex, limitations start to surface:
- Developers are locked into a single scripting language, often JavaScript
- Advanced or performance-critical logic lives often outside the platform
- Business logic becomes tightly coupled to one vendor
- High-code and low-code teams operate in separate worlds
For enterprises that value open standards, modular architectures, and long-term flexibility, this creates friction, and hesitation to fully adopt low-code.
What are Wasm-based actions?
Wasm-based actions are actions powered by WebAssembly (Wasm), a portable, high-performance runtime supported across modern platforms. With Wasm-based actions, Betty Blocks opens the door to a new development model where high-code flexibility and low-code speed come together.
High-code developers can build actions in any Wasm-supported language, such as Rust, Python, C#, Java or GoLang. These components are then imported into Betty Blocks and exposed as visual, reusable building blocks. Low-code developers can configure and orchestrate them using familiar drag-and-drop tooling, without writing code.
The result is one shared environment where both profiles collaborate seamlessly.
Why Wasm-based actions matter
Wasm-based actions are more than a technical upgrade, they solve some of the biggest challenges enterprises face with low-code today.
Unlock high-code flexibility within low-code
Developers are no longer limited to proprietary scripting or a single language. With Wasm-based actions, teams can use the languages, tooling, and expertise they already have, while still benefiting from the speed and accessibility of low-code.
This dramatically expands the types of use cases you can build with Betty Blocks, from complex integrations to performance-critical logic.
Break free from vendor lock-in
Enterprises increasingly adopt open-source software, yet often rely on development tooling that produces proprietary outcomes. Low-code platforms have historically shared this problem.
Wasm-based actions change that dynamic. Because actions are built as portable Wasm components, your business logic is no longer locked inside the platform. Today, actions run inside Betty Blocks, and in the future, they can run beyond it.
That means more ownership, more freedom, and fewer long-term risks.
Modular, open, and collaborative logic
With Wasm-based actions, logic becomes modular and reusable by design. High-code developers define secure, reusable components, while low-code builders assemble and extend them visually.
This creates a collaborative workflow where:
- Logic is shared instead of duplicated
- Teams move faster without sacrificing governance
- Knowledge is captured in reusable building blocks
Built for enterprise architectures, and what’s next
Wasm-based actions align naturally with modern enterprise architectures. They support separation of concerns, portability, and standardization, making it easier to integrate low-code into your existing stack.
They are also the foundation for long-running actions in Betty Blocks NextGen, enabling more advanced workflows and future scalability.
What you can do with Wasm-based actions today
- Create a Wasm Action directly from the Actions IDE
- Upload custom Wasm components written in your preferred language
- Configure your Wasm-based action like any other action in Betty Blocks
- Download the Wasm binary and source code to reuse logic beyond the platform
This flexibility allows you to add high-code logic to low-code apps, or extend high-code systems with low-code components.
A new standard for enterprise low-code
Wasm-based actions represent a shift in how low-code fits into enterprise development. No more choosing between speed and control. No more black boxes. Just an open, collaborative model built on proven standards.
At Betty Blocks, we believe low-code should adapt to your organization, not the other way around. Wasm-based actions are a big step in that direction.
Ready to get started?
Wasm-based actions are now available in Betty Blocks. If you’re ready to unlock high-code flexibility, reduce lock-in, and build more advanced use cases with low-code, start exploring Wasm-based actions today.
Unlock flexibility. Break free from silos. Build together.
That’s the power of the Wasm-based Action Builder.
