8 Best FastGPT Alternatives in 2026 (Open Source)

FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and. Provides a visual workflow orchestration system specifically for building and deploying AI agents.

These 8 open-source tools do the same job. They are ordered by how closely they match FastGPT, with live GitHub data so you can see which projects are actively maintained.

1. 1. Dify

   Production-ready platform for agentic workflow development.

   What sets it apart: Unlike LangGraph (code-first orchestration), Dify offers a complete visual IDE combining workflow builder, RAG pipeline, prompt engineering, and production monitoring in one platform — the Vercel of LLM apps

   Best for: Teams building RAG-powered chatbots and AI apps with visual workflow and no backend coding; Product teams who need LLMOps monitoring alongside app development in one platform

   ⭐ 157.6kFastGPT vs Dify →Full profile →

2. 2. Langflow

   Langflow is a powerful tool for building and deploying AI-powered agents and workflows.

   What sets it apart: Best visual builder for LLM workflows with direct MCP server deployment — more production-ready than Flowise with API-first architecture

   Best for: Rapid prototyping of AI agent workflows with visual builder; Non-developers building LLM applications without coding

   ⭐ 155.4kFastGPT vs Langflow →Full profile →

3. 3. Bisheng

   BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent,

   What sets it apart: Embeds domain expert preferences and business logic into AI agents via the Agent Guidance Language (AGL) framework for expert-level task handling.

   Best for: Building complex enterprise AI applications; Multi-agent collaboration scenarios; Workflows requiring human-in-the-loop intervention

   ⭐ 12.0kFastGPT vs Bisheng →Full profile →

4. 4. Flock

   Flock is a workflow-based low-code platform for rapidly building chatbots, RAG, and coordinating multi-agent teams, powered by LangGraph, Langchain, FastAPI, and NextJS.（Flock 是一个基于workflow工作流的低代码平台，用

   What sets it apart: vs Dify/Flowise: native human-in-the-loop approval, subgraph nodes for modular reuse, and MCP protocol support for flexible tool integration

   Best for: Teams building conversational AI with visual workflow design; Organizations needing human-in-the-loop agent workflows

   ⭐ 1.1kFastGPT vs Flock →Full profile →

5. 5. coze-studio

   An AI agent development platform with all-in-one visual tools, simplifying agent creation, debugging, and deployment like never before. Coze your way to AI Agen

   What sets it apart: Fully open-source core engine derived from an enterprise platform serving millions of developers.

   Best for: developers building AI agents visually; low-code AI product development; enterprises customizing agent business logic

   ⭐ 21.7kFastGPT vs coze-studio →Full profile →

6. 6. iX

   Autonomous GPT-4 agent platform

   What sets it apart: vs LangChain/AutoGen: visual no-code drag-and-drop editor with native multi-agent orchestration and horizontal worker scaling — design complex agent workflows visually instead of writing code

   Best for: Building custom multi-agent teams with visual no-code editor; Rapid prototyping of AI workflows without coding; Organizations needing self-hosted parallel agent execution at scale

   ⭐ 1.0kFastGPT vs iX →Full profile →

7. 7. Ekko Studio

   Ekko Studio is a local-first AI workspace for multi-agent chat, coding, and visual workflows, available on desktop and the web.

   What sets it apart: Combines local-first multi-agent runtime management with visual workflow automation across seven different agent frameworks in one workspace.

   Best for: developers building multi-agent systems; teams needing local-first agent workspaces; visual workflow automation for AI agents

   ⭐ 11.3kFastGPT vs Ekko Studio →Full profile →

8. 8. AgentPilot

   A versatile workflow automation platform to create, organize, and execute AI workflows, from a single LLM to complex AI-driven workflows.

   What sets it apart: vs ChatGPT/Claude desktop: local multi-agent workflow builder with graph-based design, 20+ LLM providers via LiteLLM, branching chats, and built-in multi-language code interpreter

   Best for: Power users building complex multi-agent workflows on desktop; Developers wanting visual graph-based agent orchestration with code execution

   ⭐ 568FastGPT vs AgentPilot →Full profile →