Open-source and self-hosted AI agent builders

By César Murga · 7 tools

The main self-hostable no-code agent builders in 2026 are n8n (free Community Edition), Dify (source-available, Docker) and Langflow (open source, Python under the hood). Flowise reached end of life on 31 August 2026, so it is no longer a safe new choice.

Self-hosting gives you control over data and cost, but you take on updates, security and uptime. Check the license (open source vs source-available) and whether enterprise features like SSO need a paid plan.

n8n

Visual workflow automation with built-in AI agents, self-hostable or cloud.

Starts at: €20/mo (Starter, billed annually)
Free option: Self-hosted Community Edition
Self-host: Yes

Dify

Source-available platform for agentic workflows and RAG, cloud or self-hosted.

Starts at: Free Sandbox; Professional and Team cloud plans
Free option: Sandbox plan + self-host with Docker
Self-host: Yes

Langflow

Open-source visual builder for AI agents and MCP servers, Python under the hood.

Starts at: Free (open source); free cloud account
Free option: Open source + free cloud account
Self-host: Yes

Flowise

Shutting down

Open-source agent builder — winding down; end of life 31 August 2026.

Starts at: Open source (Apache 2.0) — no longer maintained
Free option: Forkable source code
Self-host: Yes

StackAI

Enterprise AI agent platform for regulated industries, now part of Asana.

Starts at: Free plan; Enterprise custom
Free option: Free plan
Self-host: Yes

Activepieces

Open-source AI agents and workflow automation with flat per-month pricing and self-hosting.

Starts at: $20/mo (Plus)
Free option: Free plan
Self-host: Yes

CrewAI

Enterprise agent build and runtime platform with a free tier and centrally governed multi-agent workflows.

Starts at: See vendor pricing page
Free option: Free plan
Self-host: Yes

How do you choose a open-source & self-hosted tool?

Check the license and what the free edition includes.
Plan who maintains the server and upgrades.
Prefer projects that are actively maintained — Flowise’s repo was archived in August 2026.
Price the paid self-hosted tier if you need SSO (n8n Business is €667/month billed annually).

Related guides

Frequently asked questions

Is there a free self-hosted AI agent builder?

Yes. n8n Community Edition, Dify and Langflow can all be self-hosted for free.

Is Flowise still maintained?

No. Flowise announced a wind-down on 29 July 2026 and reached end of life on 31 August 2026.

Want the agent built for you instead?

Tell us the outcome you need (e.g. “qualify every inbound lead within 5 minutes”). We match you with a vetted no-code agent builder who works on n8n, Make, Zapier, Botpress or Voiceflow.

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Written and fact-checked by César Murga, Founder & Editor

Entrepreneur focused on AI-powered sales systems, with 15 years in consultative sales and international admissions. NoCode Agents researches no-code AI agent builders from vendors’ own pricing pages, docs and announcements, and links every claim to its source. Last updated 26 October 2026.

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