Alternatives to Marvin

Open-source multi-agent framework for structured AI software development

Open-source Python SDK for building multi-agent workflows with handoffs, guardrails, and realtime voice.

Python decorator library for minimal-abstraction LLM apps with observability

Open-source MCP server for live Chrome browser control and DevTools debugging

Open-source coding agent for VS Code and JetBrains, now read-only after Cursor acquisition

Open-source AI SQL generator with local-first security and 20+ database support.

Open-source terminal for orchestrating multi-model coding agents at scale.

Visually build native & web apps with AI agents and exportable code

Enterprise open-weight foundation models and agents for high-consequence software engineering.

Build and deploy full-stack apps from natural language with Replit Agent.

AI-powered app builder: build and host websites, tools & apps in minutes

Build full-stack web apps by chatting with AI.

Turn natural language into full-stack React/Next.js apps with AI

Turn ideas into live apps and websites with AI, no coding required.

Open platform for autonomous cloud coding agents that fix bugs, review PRs, and migrate code asynchronously.

Hybrid dev tool combining AI, NoCode, and full-code with reusable micro-apps.

AI app builder that turns plain English into live apps instantly.

Chat-to-app builder that ships full-stack apps in minutes

AI agents that build, deploy, and market web apps — no code needed.

TypeScript framework for building production AI agents with built-in observability.

Visual drag-and-drop Flutter app builder for cross-platform mobile, web, and desktop apps

Build full-stack apps with AI, no coding required

Generate & deploy Next.js landing pages in 5 minutes with AI.

Low-code, pro-code, and AI platform for SAP extensions and automation.

Frontend stack for building agentic UX with generative UI in React

Autonomous AI software engineer for enterprise production code deployment.

System-wide context layer for AI coding agents across multi-repo projects

Multi-agent AI coding assistant for VS Code

Turn sketches into working UI with Make Real Tldraw

AI-native design tool that ships React+Tailwind code, not mockups.