Best Self-Hosted AI Agent Builders in 2026

Platforms and tools for building, deploying, and orchestrating AI agents and agentic workflows.

The top-rated pick is Dify with 158,132 GitHub stars.

5 self-hosted ai agent builders — ranked by GitHub stars.Browse all

Dify

Open LLM app platform with visual workflows, RAG pipeline, agents and model management. Deploy self-hosted, in your VPC, or on Dify Cloud.

Alternative to:

Lindy AI

Langflow

Visually build and deploy AI agents and workflows in Python, with built-in API and MCP servers. MIT-licensed and backed by DataStax.

Alternative to:

Lindy AI

Sim

Sim is an open-source workspace to build, deploy, and orchestrate AI agents and agentic workflows. Visually connect LLMs, tools, and data sources without giving up control.

Alternative to:

Lindy AI

Hister

Private, self-hosted search engine that indexes the pages you visit and the files you keep for full-text and semantic search.

Alternative to:

Kagi

Tale

Open-source workspace where teams and AI agents plan tasks, run them in sandboxes, and review results together.

Alternative to:

Lindy AI

Why self-host?

Self-hosting puts you in control. You own your data, avoid vendor lock-in, and eliminate recurring subscription costs. For teams handling sensitive data or operating under strict compliance requirements, running your own infrastructure is often the only viable option.