Open Source Alternatives to AppGen
50 open source AI App Builder options similar to AppGen, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.
KiloClaw46Artificial IntelligenceA managed, private, and production-grade environment for OpenClaw, offering access to over 500 AI models and essential tools.
Open source · Self-hostable
Kantu22Workflow AutomationOpen-source browser extension and RPA software for automating web and desktop workflows.
Open source · Self-hostable
LLMStack16Agentic AIOpen-source, no-code platform for building and deploying AI agents, workflows, and generative AI applications.
Open source · Self-hostable
MCP.so10Developer ToolsA community-driven marketplace for discovering and deploying Model Context Protocol (MCP) servers and clients.
Open source · Self-hostable
Codel8Agentic AIAn open-source, autonomous AI agent for complex tasks using terminal, browser, and editor interactions.
Open source · Self-hostable
Together AI75AI InfrastructureSan Francisco, United States$906.0MTogether AI offers an AI-native cloud platform providing high-performance inference APIs, GPU clusters, and fine-tuning capabilities for open-source AI models.
Open source · Self-hostable
Trigger Device Inc59AI AgentLondon, United Kingdom$16.5MAn open-source platform for building and deploying AI agents and workflows.
Open source · Self-hostable
Mem056Agentic AISan Francisco, United States$23.9MPersistent memory layer for AI agents and applications.
Open source · Self-hostable
Feast AI54MLOpsSan Francisco, United StatesAn open-source feature store for managing and serving data for AI/ML models in production.
Open source · Self-hostable
LiteLLM53Foundation ModelSan Francisco, United StatesAn open-source Python library providing a unified interface for interacting with various LLM providers.
Open source · Self-hostable
Auto-GPT53Agentic AI$12.0MOpen-source autonomous AI agent platform that automates complex digital workflows.
Open source · Self-hostable
Ollama52Foundation ModelSan Francisco, United States$65.0MRun large language models locally on your machine.
Open source · Self-hostable
All-Hands AI49Agentic AIBoston, United States$5.0MAn open-source platform for building and running AI coding agents that automate software development tasks.
Open source · Self-hostable
RelAI49Agentic AISan Francisco, United States$6.9MAn open-source platform for building, simulating, evaluating, and optimizing reliable AI agents.
Open source · Self-hostable
GitHits45Developer ToolsHelsinki, Finland$1.5MThe Google of code search for open-source.
Open source · Self-hostable
Slauth.io43EnterpriseAshburn, United States$1.5MArk Infotech offers Cybersecurity, AI/ML, Data Analytics, and IT consulting services, including the Slauth.io IAM Policy Copilot.
Open source · Self-hostable
Superagent35Agentic AISan Francisco, United StatesOpen-source infrastructure for coding agents, enabling AI to plan, generate, and deploy software autonomously.
Open source · Self-hostable
Langflow32Agentic AILisbon, PortugalLow-code platform for building, iterating, and deploying AI applications, especially RAG and multi-agent systems.
Open source · Self-hostable
CRAB27Agentic AIAn open-source framework for building, operating, and benchmarking Multimodal Language Model (MLM) agents across diverse environments.
Open source · Self-hostable
Kilo Code24Agentic AISan Francisco, United StatesOpen-source, agentic AI coding tool for VS Code, combining Cline and Roo Code features.
Open source · Self-hostable
Camunda Pte. Limited20Workflow AutomationBerlin, GermanyCamunda provides an open-source process automation platform for orchestrating human and system workflows.
Open source · Self-hostable
Camunda Inc.19Process AutomationBerlin, GermanyCompany
Open source · Self-hostable
- BABabyAGI17Agentic AI
Experimental open-source framework for building self-building autonomous agents with a novel function framework.
Open source · Self-hostable
OpenDevin12AI PlatformAn open-source platform for developing AI-powered autonomous software engineering agents.
Open source · Self-hostable
- AGAgent Pilot7Agentic AI
An open-source platform for creating, managing, and interacting with AI workflows and agents.
Open source · Self-hostable
- HUHumanSignal7Agentic AI
Adala is an Autonomous DAta (Labeling) Agent framework for data processing and labeling tasks.
Open source · Self-hostable
- GEGeniA6Agentic AI
Open-source AI platform engineering team member for production environments, automating tasks and learning tools.
Open source · Self-hostable
Mastra74AI AgentSan Francisco, United States$35.5MAn open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby.
Open source · Self-hostable
YugabyteDB67DatabaseSunnyvale, United States$266.0MDistributed SQL database for cloud-native applications, offering high availability and horizontal scalability.
Open source · Self-hostable
Hyperbolic61AI InfrastructureSan Francisco, United States$19.7MOpen-access AI cloud platform providing affordable, on-demand GPUs for training and serving AI models.
Open source
Appwrite58EnterpriseSan Francisco, United States$37.0MOpen-source backend-as-a-service platform for building scalable applications.
Open source · Self-hostable
Elementary Data55Data ObservabilityTel Aviv, IsraelElementary Data provides a unified data control plane for the AI era, offering observability, quality, governance, and discovery for data and AI reliability.
Open source
Comfy Org53AI Image Generation$30.0MComfy is an AI creation engine for visual professionals, offering granular control over AI models, parameters, and outputs through a node-based workflow on an infinite canvas.
Open source
WireMock53Enterprise$6.5MIndustry-standard API simulation and mocking platform for reliable software development and testing.
Open source · Self-hostable
Vocode50Open SourceSan Francisco, United States$3.3MOpen-source library for building hyper-realistic voice agents and conversational AI applications.
Open source · Self-hostable
Rasa49Conversational AIBerlin, Germany$13.0MOpen-source conversational AI platform for building custom chatbots and virtual assistants.
Open source · Self-hostable
ORY47Identity & Access ManagementBerlin, Germany$17.0MOpen-source identity and authorization services for applications, offering composable and scalable IAM solutions.
Open source · Self-hostable
Bubble Lab45Artificial IntelligenceOpen-source, Typescript-native agentic workflow builder for natural language to code generation.
Open source · Self-hostable
Future AGI43Agentic AISan Francisco, United StatesAn open-source, end-to-end AI agent engineering platform for simulating, evaluating, and optimizing LLM applications.
Open source · Self-hostable
cal.com41Scheduling SoftwareBerlin, GermanyOpen-source scheduling infrastructure for individuals, businesses, and developers.
Open source · Self-hostable
K-Scale Labs40Frontier AI LabSan Francisco, United StatesBuilding general-purpose AI for a future of material abundance.
Open source · Self-hostable
Responsive35EnterpriseSan Francisco, United StatesPlatform for developers building stateful reactive applications on the modern cloud with object store native databases.
Open source · Self-hostable
Amplication33EnterpriseTel Aviv, IsraelOpen-source Node.js backend development platform for accelerating application development.
Open source · Self-hostable
Recognai, S.L.U.31Data CurationBarcelona, SpainCompany
Open source
vxtwitter.com31Web DevelopmentSan Francisco, United StatesThe world's leading platform for software development and version control, enabling collaboration and code hosting for millions of developers.
Open source · Self-hostable
Node.js26Software DevelopmentAn open-source, cross-platform JavaScript runtime environment.
Open source · Self-hostable
Parlant26AI AgentTel Aviv, IsraelParlant is an open-source conversational AI engine dedicated to solving the Human/AI alignment problem by enabling Large Language Models to reliably perform as desired and prevent hallucinations.
Open source · Self-hostable
Swagger26API DevelopmentSomerville, United StatesA suite of open-source and professional tools for API design, development, documentation, and testing.
Open source · Self-hostable
Inconvo25Agentic AIUnknown, UnknownInconvo is an open-source platform for building data agents on production data with safe queries, permissions, and structured outputs.
Open source · Self-hostable
- Procfunc23Developer Tools
A service written as a plain Go function, supervised by lesiw.io/proc for reliability and distribution.
Open source