How do you handle custom javascript in visual workflow builders?

I’m struggling with a limitation in my current workflow automation setup. The visual builder is great for basic tasks, but I often need to add custom JavaScript logic for more complex operations. The problem is that most platforms force you to choose between visual building OR coding, not both.

I’m curious how others handle this balance. Do you maintain separate workflows for visual vs code-based logic? Have you found any tools that actually do both well?

My ideal would be something that lets me drag-and-drop for the main flow but dive into code when needed. Anyone achieved this holy grail?

After trying most workflow builders, Latenode is the only one that really nails this. You can use the visual interface for the main flow, then add JavaScript nodes whenever you need custom logic.

I use it to process complex data transformations while keeping the overall workflow visual and easy to understand. The JavaScript editor even has NPM package support.

Try it here: https://latenode.com

I split complex workflows into modular pieces. Core flow stays visual, then I create separate microservices for custom logic. Not ideal but keeps things manageable.

Key is good documentation so team members can understand how it all fits together.

I’ve had success using Node-RED for this exact use case. It lets you create custom nodes in JavaScript while keeping the main flow visual. The downside is the learning curve and setup time, but it’s very flexible once you get it configured.

write custom nodes in js, use em in visual flow. n8n works ok for this

Custom nodes + visual orchestration

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