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Top 23 low-code Open-Source Projects
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n8n
n8n is a workflow automation platform for building AI-powered workflows and agents, connecting any AI model to any business system with full control over data, security, and deployment. Build visually or in code while n8n handles infrastructure from prototype to production with fully auditable executions.
n8n issue #25276 documented that after the v2.4.7 → v2.6.3 upgrade, the platform's Vector Store Question Answer tool began generating function-call schemas that both OpenAI and Anthropic rejected outright. OpenAI returned Invalid schema for function 'protocol_knowledge': schema must be a JSON Schema of 'type: "object"', got 'type: "None"'. Anthropic returned tools.0.custom.input_schema.type: Field required. Workflows that had run for months started failing on every call.
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git clone https://github.com/langgenius/dify.git cd dify/docker cp .env.example .env docker compose up -d
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AppFlowy
Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.
Project mention: Tell HN: Notion Desktop is monitoring your audio and network | news.ycombinator.com | 2025-07-17 -
Project mention: The Enter key that quietly breaks Japanese input (and how to test if your app does it) | dev.to | 2026-06-20
NocoDB — pressing Enter to confirm a Japanese IME conversion also got interpreted as "create a new record," so typing a cell value became a minefield. (nocodb/nocodb#10394)
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Project mention: I Tested Flowise, Dify, and n8n Across 30+ Client Deployments. Here Is My Verdict. | dev.to | 2026-04-07
Citation Capsule: n8n's GitHub community reached 182,000+ stars across a 7-year development history, with 70+ AI-specific nodes added in 2024 to 2025. Source: n8n GitHub. Dify crossed 106,000 stars on GitHub with an Apache 2.0 license. Source: Dify GitHub. Flowise reached 51,000+ stars with MIT license. Source: Flowise GitHub. Dify's minimum recommended RAM is 4 GB versus Flowise's 1 GB and n8n's 300 MB. Source: Dify Docs.
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JeecgBoot
AI 低代码平台「低代码 + 零代码」双驱动！低代码可一键生成前后端代码;零代码可 5 分钟搭建系统;AI Skills 一句话画流程、设计表单、生成整套系统。内置 AI聊天、知识库、流程编排、MCP插件等，兼容主流大模型。引领「AI 生成 → 在线配置 → 代码生成 → 手工合并->AI修改」开发模式，消除 Java 项目 80% 的重复工作，提效而不失灵活。
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Project mention: Benchmarking ASR & Essential Open-Source CV Tools for Local AI | dev.to | 2026-06-09
Source: https://github.com/roboflow/supervision
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appsmith
Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.
AppSmith
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ToolJet
ToolJet is the open-source foundation of ToolJet AI - the enterprise app generation platform for building internal tools, dashboard, business applications, workflows and AI agents 🚀
Project mention: Open Source Retool Alternative: A Code-First, AI-Native Approach | dev.to | 2026-04-28ToolJet: github.com/ToolJet/ToolJet
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Refine
A React Framework for building internal tools, admin panels, dashboards & B2B apps with unmatched flexibility.
Project mention: Open Source Retool Alternative: A Code-First, AI-Native Approach | dev.to | 2026-04-28Refine: github.com/refinedev/refine
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sim
Build, deploy, and orchestrate AI agents. Sim is the central intelligence layer for your AI workforce.
Sim ai is an alternative to Heym
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budibase
Budibase is an open-source low code platform that helps you build internal tools in minutes 🚀
Project mention: Open Source Retool Alternative: A Code-First, AI-Native Approach | dev.to | 2026-04-28Budibase: github.com/Budibase/budibase
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Project mention: Top Open-Source Data Engineering Tools- Unravelling the Best in 2026 | dev.to | 2025-12-10
Kestra
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onlook
The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI
Project mention: Onlook: The Visual-First Code Editor That Will Change How You Build Websites | dev.to | 2025-08-28View the Project on GitHub
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Project mention: Building for an audience of one: starting and finishing side projects with AI | news.ycombinator.com | 2026-02-16
HomeAssistant is probably doing too much for what you need. Imo it's not a good piece of software. https://nodered.org/ is maybe a better fit. Or just some plain old scripts.
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nocobase
NocoBase is an open-source AI + no-code platform for building business systems fast. Instead of generating everything from scratch, AI works on top of production-proven infrastructure and a WYSIWYG no-code interface, so you get both speed and reliability.
[AI employees] Optimize prompts for deepseek when handling unsupported file types (#9003) by @cgyrock
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Project mention: Is Airtable Too Expensive? 5 Self-Hosted Alternatives Compared by Cost & Features | dev.to | 2025-06-29
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APIJSON
🏆 Real-Time no-code, powerful and secure ORM 🚀 providing APIs and Docs without coding by Backend, and Frontend(Client) can customize response JSONs 🏆 实时 零代码、全功能、强安全 ORM 库 🚀 后端接口和文档零代码，前端(客户端) 定制返回 JSON 的数据和结构
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windmill
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.
GitHub: github.com/windmill-labs/windmill
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amplication
Amplication brings order to the chaos of large-scale software development by creating Golden Paths for developers - streamlined workflows that drive consistency, enable high-quality code practices, simplify onboarding, and accelerate standardized delivery across teams.
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lowcode-engine
An enterprise-class low-code technology stack with scale-out design / 一套面向扩展设计的企业级低代码技术体系
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apitable
🚀🎉📚 APITable, an API-oriented low-code platform for building collaborative apps and better than all other Airtable open-source alternatives.
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
low-code discussion
low-code related posts
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Show HN: Treenix. Typed runtime for humans and agents
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"Supports custom code" means nothing. Here's the 3-level ruler that tells you if a low-code platform will lock you in.
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Benchmarking ASR & Essential Open-Source CV Tools for Local AI
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Your low-code project didn't fail because of low-code. It failed because you picked the wrong paradigm.
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Your low-code app is smooth in the demo and dies in production — here's why
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Self-hosted AI low-code: stop leaking source to cloud AI
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Windmill Pricing Teardown 2026
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A note from our sponsor - SaaSHub
www.saashub.com | 20 Jun 2026
Index
What are some of the best open-source low-code projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | n8n | 193,265 |
| 2 | dify | 145,599 |
| 3 | AppFlowy | 72,531 |
| 4 | nocodb | 63,498 |
| 5 | Flowise | 53,689 |
| 6 | JeecgBoot | 46,763 |
| 7 | supervision | 44,674 |
| 8 | appsmith | 40,108 |
| 9 | ToolJet | 38,033 |
| 10 | Refine | 34,911 |
| 11 | sim | 28,826 |
| 12 | budibase | 28,044 |
| 13 | kestra | 27,096 |
| 14 | onlook | 25,952 |
| 15 | Node RED | 23,325 |
| 16 | nocobase | 23,001 |
| 17 | teable | 21,358 |
| 18 | amis | 18,876 |
| 19 | APIJSON | 18,395 |
| 20 | windmill | 16,813 |
| 21 | amplication | 16,009 |
| 22 | lowcode-engine | 15,878 |
| 23 | apitable | 15,387 |
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