StackAI alternatives
Build, deploy and govern enterprise AI agents and visual workflows.
Alternatives by use case
Start with Dify
Visual workflows with branching
Build agentic workflows with visual nodes, persistent knowledge, tools and human decision checkpoints.
Compare the alternatives
| Tool | A good fit for | Pricing | Approval steps | Knowledge sources |
|---|---|---|---|---|
| StackAI | Enterprise teams needing AI workflows with governed private deployment. | Free: $0/month, 500 runs and 2 projects. Enterprise: custom quote with custom runs/seats, unlimited projects, all features and private deployment options. | Yes | Yes |
| Dify | Visual workflows with branching | Cloud Sandbox: free. Professional: $59/workspace/month or $590/year ($49.1667/month by exact division). Team: $159/month or $1,590/year ($132.50/month). Self-hosted Community: free under Dify's license; Enterprise: custom. Provider/model use and resource caps are separate. | Yes | Yes |
 n8n | AI steps with human review | Free self-hosted Community edition; Starter €20/mo, Pro €50/mo, Business €667/mo (all billed annually, monthly billing shown as 17% more); Enterprise custom pricing | Yes | Yes |
 Tines Stories | Custom logic and API workflows | Stories Community Edition is free forever: 3 flows and 25,000 monthly events. Paid Stories/custom self-hosting is arranged with the account team; no public dollar rate is established. | Limited | No |
 Activepieces | AI using your own knowledge | $0–$200/mo; annual billing lowers Plus to $16/mo and Team to $166/mo; Ultimate custom; Community Edition free self-hosted | Yes | Yes |
 Windmill | Reusable, versioned workflows | Cloud Free: $0, 1,000 executions/month. Cloud Team: $10/developer seat/month (operators $5), 10,000 executions/seat, maximum 10 seats. Cloud Enterprise is capacity-based, advertised from $840/month. Self-hosted Free is $0 with unlimited executions; self-hosted Enterprise is seats+compute, and eligible small-company Pro is separately restricted. | Yes | Not confirmed |
Each alternative in detail
01
Dify: visual workflows with branching
Build agentic workflows with visual nodes, persistent knowledge, tools and human decision checkpoints.
- Visual workflow builder
- Conditional branches
- Email, form, or manual trigger
Who it suits
Teams building RAG-based AI workflows with deployment and governance options.
02
n8n: AI steps with human review
A fair-code workflow automation platform with a visual node canvas, AI agents, and MCP support, sold as managed cloud or self-hosted.
- Human approval steps
- AI model steps
Who it suits
Technical teams building visual, code-extensible workflows and AI agents, self-hosted or in n8n Cloud
03
Tines Stories: custom logic and API workflows
Build and run multi-step workflows and AI agents for security and IT operations.
- Custom code steps
- Webhook or API trigger
- Data mapping and transforms
The trade-off. Unlike StackAI, it has no knowledge sources or web browsing.
Who it suits
Security and IT teams building auditable event-driven workflows and controlled agents
04
Activepieces: AI using your own knowledge
Builds and runs app-connected flows and AI agents in the cloud or on customer-controlled infrastructure.
- Knowledge bases or RAG
- AI model steps
Who it suits
Individuals and teams that want app automation with AI agents and optional self-hosting.
05
Windmill: reusable, versioned workflows
Build code-first workflows, APIs and internal tools with a low-code flow editor.
- Reusable subflows
- Workflow versioning
Who it suits
Developers automating internal processes with scripts, APIs and governed flows.
Questions about StackAI alternatives
What is a good alternative to StackAI?
Start with Dify for visual workflows with branching. n8n suits AI steps with human review. Tines Stories suits custom logic and API workflows.
How do the prices compare with StackAI?
StackAI: Free: $0/month, 500 runs and 2 projects. Enterprise: custom quote with custom runs/seats, unlimited projects, all features and private deployment options. Dify: Cloud Sandbox: free. Professional: $59/workspace/month or $590/year ($49.1667/month by exact division). Team: $159/month or $1,590/year ($132.50/month). Self-hosted Community: free under Dify's license; Enterprise: custom. Provider/model use and resource caps are separate. n8n: Free self-hosted Community edition; Starter €20/mo, Pro €50/mo, Business €667/mo (all billed annually, monthly billing shown as 17% more); Enterprise custom pricing.
Is there a free alternative to StackAI?
Yes. Dify, Tines Stories, Activepieces and Windmill can be used for free. Self-hosting Dify still costs hosting and model usage.
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