6 Open Source Workflow Automation Tools to Replace Zapier and Make

Zapier and Make are the default answers when someone says "I need to connect these two apps." But that convenience comes at a cost — literally. Zapier charges per task, and if your workflows scale, the bill scales with them. Make is more generous on pricing, but both platforms own your automation logic and your data.

Open source workflow automation tools flip that model. You get the same trigger-action logic, the same app integrations, and the same scheduling — but you run it on your own infrastructure and you are never charged per automation run. Some are visual and no-code, some are code-first for developers. Here are six worth evaluating.

n8n

n8n is the closest open source equivalent to Zapier or Make in terms of approachability. It has a visual drag-and-drop workflow builder with over 400 integrations, and you can drop into JavaScript for custom logic when the built-in nodes do not cover your use case.

Key features:

• Visual workflow editor with 400+ pre-built integrations
• Custom JavaScript nodes for arbitrary logic
• Self-hostable via Docker or one-click on platforms like Railway and DigitalOcean
• Native AI agent nodes for chaining LLM calls
• Webhook triggers, cron scheduling, and manual execution

n8n uses a fair-code license model and is the most popular open source automation tool by community size. If you are currently paying Zapier for multi-step zaps, n8n is the most direct replacement.

Explore n8n on OpenAltFinder →

Apache Airflow

Apache Airflow is not a Zapier clone — it is a battle-tested workflow orchestrator used by data engineering teams at companies like Airbnb, Lyft, and Twitter. Workflows are defined as Python code, which gives you complete control over logic, retries, and branching.

Key features:

• Define pipelines programmatically in Python — no visual editor constraints
• Rich operator library for AWS, GCP, Azure, and hundreds of services
• Modular architecture that scales horizontally by adding workers
• Web UI for monitoring DAG execution in real time
• Dynamic pipeline generation and Jinja templating

Airflow is designed for data engineers and platform teams managing complex multi-step pipelines — ETL jobs, ML model training, infrastructure provisioning. It is free, Apache 2.0-licensed, and runs on your own infrastructure.

Explore Apache Airflow on OpenAltFinder →

Automatisch

Automatisch describes itself as "the open source Zapier alternative," and the comparison holds up. It provides a visual interface where you connect services like GitHub, Discord, Firebase, PostgreSQL, Twilio, and Typeform, then define trigger-based workflows that run automatically.

Key features:

• Visual no-code workflow builder
• Growing library of app integrations
• Self-hostable — all data stays in your environment
• Built-in GDPR compliance, ideal for regulated industries
• AGPL-3.0 licensed

Because Automatisch runs on your own infrastructure, it is a strong fit for teams in healthcare, finance, or any organization that cannot send data through a third-party automation service.

Explore Automatisch on OpenAltFinder →

Kestra

Kestra is an event-driven orchestration platform that sits somewhere between Airflow and Zapier. Workflows are defined in YAML (or via a built-in visual editor), and Kestra brings over 500 plugins covering databases, cloud providers, messaging systems, and APIs.

Key features:

• YAML-based workflow DSL with a visual editor option
• 500+ plugin integrations
• Event-driven triggers plus cron scheduling
• Parallel task execution with error handling and retries
• Real-time execution dashboard with detailed logs
• Horizontally scalable for enterprise workloads

Kestra is aimed at developers and data engineers who want the reliability of a code-first orchestrator but prefer YAML to Python. It is Apache 2.0-licensed and self-hostable via Docker or Kubernetes.

Explore Kestra on OpenAltFinder →

Trigger.dev

Trigger.dev takes a developer-first approach to workflow automation. You write tasks in TypeScript — background jobs, scheduled crons, event-driven pipelines, or AI agent chains — and Trigger.dev handles the infrastructure: retries, timeouts, concurrency limits, and a real-time dashboard.

Key features:

• Write workflows in TypeScript — version-controlled and testable
• Native Next.js and Node.js SDK integration
• Durable execution — interrupted tasks resume from where they left off
• Purpose-built for AI agent pipelines with slow LLM calls
• Real-time run monitoring and logging
• Self-hostable via Docker, with a managed cloud option available

Trigger.dev is not a visual Zapier alternative. It is for developers who want their automation logic to live in the same codebase as their app, with full type safety and CI/CD integration.

Explore Trigger.dev on OpenAltFinder →

Automa

Automa is different from the rest — it is a browser extension for Chrome and Firefox, not a server-side platform. You build automation workflows inside your browser by visually connecting blocks: click, fill form, extract data, loop, condition, wait. It runs directly in the browser, so it can interact with any website you can visit.

Key features:

• Visual block-based workflow builder inside the browser
• Interact with any website — no API access needed
• Extract data to CSV, Google Sheets, or send to webhooks
• Trigger workflows manually, on a schedule, or via keyboard shortcut
• JavaScript blocks available for custom logic
• No server setup required

Automa is ideal for personal productivity tasks and light web scraping — auto-filling forms, scraping product listings, scheduling social media posts. It is not a replacement for server-side automations, but for browser-side workflows it covers a lot of ground with zero infrastructure.

Explore Automa on OpenAltFinder →

Which one should you choose?

If you are replacing Zapier or Make directly, start with n8n — it has the most integrations and the gentlest learning curve for non-developers. If data sovereignty is your primary concern, Automatisch was built specifically for that. For developer teams that want automation in their codebase, Trigger.dev and Apache Airflow are natural fits — Airflow for data pipelines, Trigger.dev for AI agent workflows. Kestra bridges the gap between visual builders and code-first orchestrators. And if your automation needs are browser-only, Automa gets the job done without a server.

All six are open source and self-hostable. None of them charge you per task run.