A drop-in foundation for workflow automation products

Workflow Builder is a new open-source Next.js template that ships as a complete visual automation platform, built on top of the Workflow Development Kit (WDK). The repository includes a visual editor, an execution engine, and supporting infrastructure, so teams can deploy a working product to Vercel and then customize it rather than starting from scratch.

Deploy the Workflow Builder

Inside the template

The application is a production-ready Next.js project. It provides an interactive workflow editor, AI-assisted workflow generation, six prebuilt integration modules, and end-to-end observability out of the box.

Visual editing without code

Users build and connect workflows through a drag-and-drop editor. Real-time validation, undo/redo, auto-save, and persistent state are all included, so there is no need to write code to assemble a working automation. The prebuilt integration modules cover:

  • Resend for email
  • Linear for issue tracking
  • Slack for notifications
  • PostgreSQL for database operations
  • HTTP requests for API calls
  • Vercel AI Gateway for AI model access

Natural language workflow generation

The text-to-workflow capability takes a natural language description of an automation and converts it into structured step definitions and connections. This gives users a fast path from idea to an executable workflow without manually assembling each node.

External triggers and dynamic data flow

Webhook triggers let external apps and services start workflow execution in real time, connecting the platform to outside data sources. Inside a workflow, any step can reference the output of steps that ran before it, which enables data-driven processes and agentic patterns where later actions depend on earlier results.

TypeScript as the runtime representation

Every visual workflow compiles into executable TypeScript through the WDK. The "use workflow" and "use step" directives transform ordinary-looking functions into a runtime execution graph that manages state, error handling, and step coordination behind the scenes.

Where the template fits

Because Workflow Builder ships as a full application rather than a library, it can serve as the starting point for several kinds of products:

  • AI agents: multi-step workflows that span different systems and rely on model calls
  • Internal tooling: automation platforms matched to an organization’s own processes
  • Customer-facing builders: domain-specific workflow products in the mold of Zapier or n8n
  • Integration platforms: adding drag-and-drop workflow features to an existing product
  • Data pipelines: ETL and processing pipelines with visual monitoring and execution tracking