28 Best Open-Source No-Code Agent Builders in 2026 (Ranked by GitHub Activity)

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

Production-ready platform for agentic workflow development.

Low-code multi-agent AI framework for planning, research, coding, and cross-platform delivery

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

Visual testing tool for MCP servers

The platform for LLM evaluations and AI agent testing

Open-source AI automation platform with TypeScript pieces available as MCP servers

Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-source alternative to Retool and Temporal.

The all-in-one AI productivity accelerator. On device and privacy first with no annoying setup or configuration.

Open-source AI and no-code platform for building business systems with coding agents

AI agent building platform with data processing, model invocation, visual workflows, and Docker deployment

A lightweight next-gen data explorer - Postgres, MySQL, SQLite, MongoDB, Redis, MariaDB, Elastic Search, and Clickhouse with Chat interface

Desktop Companion for Hermes Agent

Build AI Agents, Visually

AI low-code platform for generating systems, code, forms, and reports with chat and workflow orchestration

Low-code framework for building custom LLMs, neural networks, and other AI models

✨ AI Spreadsheet for Business

An open-source visual programming environment for battle-testing prompts to LLMs.

Desktop multi-agent harness with visual workflows, built with Rust, Tauri, React, and langgraph-rust

🤖 Chat with your SQL database 📊. Accurate Text-to-SQL Generation via LLMs using Agentic Retrieval 🔄.

Chat with your database or your datalake (SQL, CSV, parquet). PandasAI makes data analysis conversational using LLMs and RAG.

Open-source Docker Compose template for self-hosted AI workflows with n8n, Ollama, Qdrant, and PostgreSQL

Chat with your data - AI data analysis and visualization on CSV, Postgres, MySQL, Snowflake, SQLite...

The no-code platform for building custom LLM Agents

No-code multi-agent framework to build LLM Agents, workflows and applications with your data

LLM Comparator is an interactive data visualization tool for evaluating and analyzing LLM responses side-by-side, developed by the PAIR team.

Visualization and debugging tool for LangChain workflows

Open-source, local-first desktop AI workforce coordinated by a Commander through one chat.