What is the best free alternative to Zapier?
Windmill is the closest free alternative to Zapier: same Workflow Automation sub-category, and it is free. Open-source, self-hostable with unlimited executions on the free tier
Best free Zapier alternatives
Looking for a free alternative to Zapier? Here are 9 workflow automation worth trying — 9 with a free tier. Zapier itself is free tier + paid.
| Tool | Zapier (you searched) | Windmill | Langflow | Google Opal |
|---|---|---|---|---|
| Pricing | freemium | free | free | free |
| Best for | Connect 8,000+ apps with AI agents | Open-source, self-hostable with unlimited executions on the free tier | Open source with 138k GitHub stars, free desktop app and free cloud account | Describe an app in plain language and Opal builds a shareable multi-step AI workflow |
| Visit | Open ↗ | Open ↗ | Open ↗ | Open ↗ |
Zapier alternatives — straight answers
Are there free Zapier alternatives?
Yes — 9 of the 9 alternatives listed here are free or freemium: Windmill, Langflow, Google Opal, Flowise, Sim. None of them are paid-only.
Is Zapier free?
Zapier is free tier + paid. There is a free tier you can work in, with paid plans above it.
How were these Zapier alternatives chosen?
They are the other tools in Workflow Automation, then the rest of AI Agents & Automation, ordered free tiers first and capped at 9. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.
All Zapier alternatives
Browse Workflow Automation →Windmill
Workflow Automation
✦ WhyA Zapier alternative — Open-source, self-hostable with unlimited executions on the free tier.
- Open-source, self-hostable with unlimited executions on the free tier
- Turns scripts (Python/TS/Go/Bash/SQL) into flows and full internal apps
- Kubernetes/Docker/Fargate deployable with a hybrid seat+compute enterprise pricing model
Langflow
Workflow Automation
✦ WhyA Zapier alternative — Open source with 138k GitHub stars, free desktop app and free cloud account.
- Open source with 138k GitHub stars, free desktop app and free cloud account
- Drag-and-drop visual builder for agents and RAG pipelines on top of LangChain primitives
- Deep integrations across major LLMs, vector DBs and Google Cloud/Slack/MongoDB
✦ WhyA Zapier alternative — Describe an app in plain language and Opal builds a shareable multi-step AI workflow.
- Describe an app in plain language and Opal builds a shareable multi-step AI workflow
- Agent step for autonomous multi-step workflows and automated runs
- Chains prompts, Gemini/Veo/Imagen models and tools visually
- Available in 160+ countries, also inside the Gemini app as Gems
✦ WhyA Zapier alternative — Drag-and-drop builder for chatbots, agents and RAG flows.
- Drag-and-drop builder for chatbots, agents and RAG flows
- Self-host free with Docker or npm, with many model and vector store integrations
- Agentflow for multi-agent orchestration
- Embeddable chat widget and API output
✦ WhyA Zapier alternative — Visual canvas for building, deploying and monitoring AI agents and workflows.
- Visual canvas for building, deploying and monitoring AI agents and workflows
- Open source and self-hostable
- Copilot that helps assemble workflows from natural language
- Integrations with common tools and knowledge bases
✦ WhyA Zapier alternative — Builds AI bots for WeChat, QQ, Discord, Slack, Telegram and other chat platforms.
- Builds AI bots for WeChat, QQ, Discord, Slack, Telegram and other chat platforms
- Plugs into Dify, n8n, Coze and other workflow back ends
- Plugin system and web admin panel
- Free and open source, self-hosted
n8n
Workflow Automation
✦ WhyA Zapier alternative — Open-source, self-hostable automation.
- Open-source, self-hostable automation
- Visual AI-agent and LLM nodes
- Full code when you need it
- Free to run yourself
Make
Workflow Automation
✦ WhyA Zapier alternative — Visual drag-and-drop automation.
- Visual drag-and-drop automation
- AI modules and agent scenarios
- 1,000+ app integrations
- Generous free tier
Gumloop
Workflow Automation
✦ WhyA Zapier alternative — No-code canvas for AI workflows.
- No-code canvas for AI workflows
- Web scraping, extraction and enrichment
- Shareable automation templates
- Free plan to start