Alternatives to Twelvet

Cosine Genie is a coding AI built on production code, with CLI, cloud, and air-gapped deployment for maintainable software.

v0 by Vercel turns a text prompt into a working React and Next.js app you can publish as a live website.

Open-source AI coding agent for VS Code and JetBrains — now free to fork after the Cursor acquisition.

Devin Desktop (formerly Codeium) is a free AI coding assistant and agent-native IDE with unlimited Tab completions and an Agent Command Center for fleets of

Agent orchestration IDE for managing fleets of local and cloud coding agents from one Agent Command Center

Free browser-based AI coding IDE with built-in AI assistant for faster development.

Tempo Labs is an AI IDE for React teams: prompt components into existence, then refine them on a visual canvas both designers and engineers share.

AI code assistant for React, Vue, and Tailwind devs, embedded in VS Code and JetBrains IDEs

Crush is a free, open-source agentic coding assistant that runs in your terminal and wires any LLM into your CLI workflow.

Cursor is the agentic coding IDE that plans, builds, tests and ships software across desktop, CLI, Slack, mobile and cloud agents.

Pi Coding Agent is a free, open-source terminal coding agent harness you adapt to your own workflow.

Free, open-source AI code assistant plugin for JetBrains IDEs with spec-driven development

Kilo is an open-source AI coding agent with 500+ models and zero inference markup across IDE, CLI, and cloud.

FanBox is a free macOS terminal plus live diff cockpit for vibe coding with agent orchestration

Z.ai is a free conversational AI assistant for presentations, writing, and agentic coding with ZCode.

Browser-based cloud IDE with real-time collaboration and one-click hosting

Open-source screenshot to code converter turns mockups, Figma designs, and screen recordings into HTML, React, and Vue.

Open-source spec framework that keeps AI coding agents building the right thing, spec-first.

Windsurf Editor — now Devin Desktop — runs fleets of local and cloud AI coding agents from one IDE with agent orchestration.

Free open-source VSCode extension for one-click AI code comments, conversions, and UI-to-code

Bito's Governor is an AI model router and code context engine that cuts coding agent spend by grounding every request in your codebase.

Open-weight agentic coding models — Laguna XS 2.1 and Laguna S 2.1 — built for secure on-prem and air-gapped enterprise AI.

Multi-agent AI coding assistant for VS Code, launching soon

Replit Agent turns a plain-English prompt into a runnable full-stack app inside your browser, then deploys it to a live URL.

A desktop memory layer that captures your focused app every 2 seconds and pipes that history into MCP-ready AI assistants.

Renamed: Amazon CodeWhisperer became Amazon Q Developer on April 30, 2024; all its features moved there.

Enterprise AI code assistant that feeds your architecture, policies and standards into every agent your team runs

Apidog binds API design, debugging, mocking, testing, and docs to one OpenAPI definition — with MCP and agent debugging built in.

Open-source dev platform uniting AI, NoCode, Code, and reusable MicroApps.

GitHub Copilot is an AI coding agent that completes code, reviews pull requests, and runs agents from issue to merge