For an open source workflow automation platform, the strongest matches are stackstorm/st2 (StackStorm is a self-hostable event-driven automation platform with a), n8n-io/n8n (n8n is a self-hostable, open-source workflow automation platform with) and automatisch/automatisch (Automatisch is a self-hosted, open-source automation platform that orchestrates). huginn/huginn and simstudioai/sim round out the shortlist. Each is ranked by relevance to your query, popularity and recent activity.
Self-hosted workflow automation platforms that connect web applications and synchronize data across different services.
StackStorm is an event-driven automation platform that watches for events from external systems and triggers workflows, actions, and remediation across infrastructure tools. At its core, it provides a workflow orchestration engine that chains multiple actions and conditional logic into reusable, multi-step workflows for complex automation tasks, alongside a rules engine that applies matching criteria to triggers and maps trigger payload data to action inputs for automated responses. The platform distinguishes itself through a ChatOps integration framework that enables executing commands and r
StackStorm is a self-hostable event-driven automation platform with a workflow orchestration engine, conditional logic, webhook support, and multi-step workflows — fitting the core need for connecting apps and automating tasks, though it lacks a visual editor and is more infrastructure/DevOps-focused than consumer app integrations.
n8n is a workflow automation platform that combines a visual interface with code-based extensibility to design, orchestrate, and manage automated processes. It provides a comprehensive suite of tools for data transformation, filtering, and storage, allowing users to build complex logic through conditional branching, looping, and sub-workflow execution. The platform supports both pre-built integration nodes and custom code execution in JavaScript or Python, enabling connectivity with a wide range of external services and APIs. The platform includes a suite of generative AI capabilities, such a
n8n is a self-hostable, open-source workflow automation platform with a visual editor, hundreds of pre-built integrations, conditional logic, webhook support, multi-step workflows, and built-in monitoring and error handling — a direct Zapier alternative that meets all the key requirements.
Automatisch is an open-source, self-hosted automation platform designed to orchestrate multi-stage workflows across various third-party web services. It functions as a no-code integration engine that allows users to connect disparate applications, enabling the automated movement of data and the execution of tasks without manual intervention. By running the platform on private infrastructure, users maintain full control over their data and ensure compliance with internal security policies. The platform distinguishes itself through a focus on secure, local credential management and flexible int
Automatisch is a self-hosted, open-source automation platform that orchestrates multi-step workflows and connects apps with a no-code interface, covering the core Zapier-like functionality and many of the requested features.
Huginn is a self-hosted automation platform that functions as an event-driven workflow engine. It allows users to build autonomous agents that monitor web services, scrape data, and execute complex tasks by propagating events through a directed graph. By running on your own server infrastructure, it provides a private environment for orchestrating workflows without relying on third-party automation services. The platform distinguishes itself through a modular, plugin-based architecture that enables the development of custom agents to handle specific data processing needs. Each agent maintains
Huginn is a self-hosted, event-driven automation platform that connects apps and orchestrates workflows through a graph of autonomous agents, fitting the core need for a Zapier-like tool, though it relies on a code/configuration approach rather than a visual drag-and-drop editor.
This project is an AI agent orchestration platform that provides a visual environment for building, testing, and deploying complex automation workflows. It functions as a low-code development interface where users can chain discrete functional blocks into dependency-aware pipelines to integrate artificial intelligence with external data and services. The platform supports the creation of intelligent conversational agents, automated business processes, and multi-service API orchestrations within a unified workspace. The platform distinguishes itself through its event-driven integration engine,
Sim is an open-source, low-code workflow automation platform with a visual editor, event-driven integrations, and multi-step pipelines, covering nearly all the required features for a Zapier-like self-hosted solution.
SuperAGI is a comprehensive marketing automation platform and customer data system designed to orchestrate multi-channel engagement workflows. It functions as a no-code workflow orchestrator, allowing users to build complex, automated task sequences triggered by real-time user behavior, transactional data, or scheduled events. By centralizing customer profiles and interaction history, the platform enables businesses to manage end-to-end marketing operations from a single interface. The platform distinguishes itself through its deep integration with e-commerce storefronts and its ability to ex
SuperAGI is an open-source no-code workflow orchestrator that builds automated task sequences triggered by events or schedules, so it is a workflow automation platform, but its focus on marketing automation and e-commerce makes it narrower than a general-purpose Zapier alternative and it may not offer a wide range of pre-built integrations or explicit webhook support.
Elsa Core is a workflow engine framework designed for defining, executing, and managing long-running business processes. It functions as a distributed workflow orchestrator and event-driven trigger system, capable of operating as a multi-tenant platform with secure data isolation. The project distinguishes itself through a flexible approach to workflow definitions, supporting a visual drag-and-drop designer, programmatic C# definitions, and portable JSON specifications. It provides a highly extensible architecture allowing for the development of custom activities and the use of a dynamic expr
Elsa Core is a self-hostable workflow engine framework with a visual designer, multi-step workflow support, conditional logic, and event-driven triggers—exactly the kind of tool this search targets, though it is more of a framework for building automation platforms than a ready-made Zapier alternative with pre-built integrations.
Camunda is a business process automation platform and orchestration tool used to model, deploy, and monitor automated workflows and human-centric tasks. It features a BPMN workflow engine for executing processes based on the BPMN 2.0 standard and a DMN decision engine for automating business logic and rule evaluation. The platform is designed for flexibility through an embedded workflow library that allows the engine to be integrated directly into custom applications. It supports multi-tenant workflow management, enabling the secure separation of process definitions and instance data for mult
Camunda is an open-source workflow automation platform based on BPMN and DMN, offering a visual modeler, self-hosting, conditional logic, webhooks, and monitoring—making it a solid fit for building automated workflows similar to Zapier.
Beehive is a self-hosted integration platform and event automation engine. It functions as a plugin-based workflow orchestrator that links independent service plugins to automate data movement between external APIs and hardware. The system acts as an IoT hardware controller for managing network-enabled sockets, smart lighting, and serial port devices via TTY or COM. It also serves as an HTTP webhook gateway, receiving incoming requests to trigger internal workflows and external notifications. Capability areas include event-driven workflow automation with filter-based routing and template-bas
Beehive is a self-hosted event-driven integration platform that automates workflows between services and hardware via plugins, webhooks, and scheduled triggers, fitting the search for a Zapier alternative—but it lacks a visual workflow editor, relying instead on configuration and filter-based routing.