Best 17 Open Source Zapier Alternatives in 2026

n8n is a fair-code workflow automation platform that uniquely combines visual building with custom coding capabilities. Think of it as a powerful middle ground between simple automation tools and complex programming frameworks.

Activepieces is a workflow automation platform that connects your business apps and creates automatic actions between them. You build flows by dragging steps onto a canvas, choosing when things should happen and what actions to take. Unlike basic automation tools, Activepieces includes AI agents that can make smart decisions and handle complex tasks on their own.

Inngest is an event-driven durable execution platform built to run reliable, multi-step workflows on any platform without managing infrastructure. Think of it as a mix between traditional queues and modern serverless functions, but much better.

Pipedream is a serverless workflow automation platform designed specifically for developers who need to connect different applications and APIs. Think of it as a bridge that lets your apps talk to each other automatically.

Langflow is an open-source platform for building AI applications through a visual interface. You create workflows by connecting building blocks called components. Each component performs a specific task, such as loading data, talking to an AI model, or storing information in a database.

Prefect is a Python-based workflow management system that turns regular functions into production-ready data pipelines. You write your code in normal Python, add a few simple markers (called decorators), and Prefect handles the scheduling, monitoring, and error recovery automatically.

ByteChef is a workflow automation and API integration platform that helps you connect different applications and automate business processes. Think of it as a tool that lets you build instructions for your apps to talk to each other and complete tasks automatically.

Node-RED is a visual programming environment that lets you build applications by connecting nodes together in a flow. Each node performs a specific task like reading sensor data, sending messages, or controlling devices. You work with a browser-based editor where you drag nodes from a palette and wire them together.

Flowise is a visual development platform for creating AI-powered applications using large language models. Think of it as building blocks for AI: you drag components onto a canvas and connect them together to create smart systems.

Dagster is a tool that helps organize and run your data workflows automatically. Think of it as a smart manager for all your data tasks. Instead of manually running scripts or remembering which files depend on others, Dagster handles this for you.