The best tambo alternatives

CopilotKit

CopilotKit/CopilotKit

The Frontend Stack for Agents & Generative UI. React, Angular, Mobile, Slack, and more. Makers of the AG-UI Protocol

Choose CopilotKit if…

• you want the more widely starred option (38.5k)
• you specifically need agent-native or agentic-ai

Shares agent, agents, ai, assistant with tambo.

sim

simstudioai/sim

Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.

Choose sim if…

• Apache License 2.0 suits your use better than MIT License
• you want the more widely starred option (30.0k)
• you specifically need agent-workflow or agentic-workflow

Shares agents, ai, react with tambo.

page-ui

PageAI-Pro/page-ui

📃 Landing page UI components for React & Next.js, built on top of TailwindCSS

Choose page-ui if…

• you prefer a smaller, narrower project to a large one
• you specifically need ai-website-builder or components

Shares ai, react, reactjs, ui with tambo.

mastra

mastra-ai/mastra

Mastra is the modern TypeScript framework for AI-powered applications and agents.

Choose mastra if…

• you want the more widely starred option (29.3k)
• you specifically need chatbots or evals

Shares agents, ai, reactjs with tambo.

nuclear

nukeop/nuclear

Streaming music player that finds free music for you

Choose nuclear if…

• GNU Affero General Public License v3.0 suits your use better than MIT License
• you want something your agent can install directly rather than a library to wire up yourself
• you want the more widely starred option (18.9k)
• you specifically need desktop-app or linux

Shares agent, ai, react with tambo.

cc-haha

NanmiCoder/cc-haha

Local-first cross-platform desktop workspace for Claude Code / agents: multi-agent, Git worktrees, code diffs, skill marketplace, multi-model, Computer Use, task-aware desktop pets, with WeChat, Feishu, DingTalk, Telegram, WhatsApp and H5 access.

Choose cc-haha if…

• you specifically need ai-agent or anthropic

Shares agent, ai, react with tambo.

opengap

open-gitagent/opengap

A framework-agnostic, git-native standard for defining AI agents

Choose opengap if…

• you want something your agent can install directly rather than a library to wire up yourself
• you prefer a smaller, narrower project to a large one
• you specifically need agent-framework or agent-skills

Shares agent, agents, assistant with tambo.

lobe-ui

lobehub/lobe-ui

🍭 Lobe UI - an open-source UI component library for building AIGC web apps

Choose lobe-ui if…

• you prefer a smaller, narrower project to a large one
• you specifically need aigc or antd

Shares react, ui, ui-components with tambo.

onlook

onlook-dev/onlook

The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI

Choose onlook if…

• Apache License 2.0 suits your use better than MIT License
• you want the more widely starred option (27.1k)
• you specifically need cursor or cursor-ai

Shares ai, react, ui with tambo.

tamagui

tamagui/tamagui

Style React fast with 100% parity on React Native, an optional UI kit, and optimizing compiler.

Choose tamagui if…

• you specifically need atomic-css or css-in-js

Shares react, ui, ui-components with tambo.

LobsterAI

netease-youdao/LobsterAI

Open-source, desktop-grade AI agent that gets real work done — data analysis, slides, docs, video & web research. Built on OpenClaw; runs tools on your real desktop and takes commands from your phone via WeChat, Feishu, DingTalk & Telegram.

Choose LobsterAI if…

• you specifically need ai-agent or ai-assistant

Shares agent, react with tambo.

searchkit

searchkit/searchkit

React + Vue Search UI for Elasticsearch & Opensearch. Compatible with Algolia's Instantsearch and Autocomplete components.

Choose searchkit if…

• Apache License 2.0 suits your use better than MIT License
• you prefer a smaller, narrower project to a large one
• you specifically need algolia or angular

Shares react, ui, ui-components with tambo.