PixilUI and Kibo UI
A free, MIT custom registry of composable components for shadcn/ui: 41 components such as Gantt, Kanban, Editor, Code Block, Color Picker and Dropzone, plus blocks and patterns. Its repository now sits in the shadcnblocks GitHub organization.
In short
Kibo UI is a free MIT registry of composable components for shadcn/ui, strong on complex app pieces: Gantt, Kanban, rich text editor, code block, color picker, dropzone and more, 41 in its registry. That registry listed no AI or agent item on 4 November 2026. Use Kibo UI for those app components and PixilUI for the agent moments: approval card, run timeline, tool call row, thinking state and streaming text.
Checked against Kibo UI's own docs on .
Side by side
| Question | Kibo UI | PixilUI |
|---|---|---|
| What it is | A custom shadcn/ui registry of composable components, blocks and patterns | AI product components published as a shadcn registry |
| Strengths | Gantt, Kanban, Editor, Code Block, Color Picker, Dropzone, Contribution Graph, Video Player, Sandbox | Approval card, run timeline, tool call row, thinking state, streaming text; agent inbox and eval table in Pro |
| AI and agent items | None listed in its registry on 4 November 2026 | The whole catalog |
| License and price | Free, MIT | Free items under MIT. Pro $199 once (the first 100 at $99 when Pro opens), Pro yearly $129, Team $599 once for 10 people |
| Install | npx kibo-ui add gantt | npx shadcn@latest add @pixilui/approval-card |
What Kibo UI is good at
- Complex app components that shadcn/ui leaves out: Gantt, Kanban, rich text editor, color picker, image crop, QR code and a code sandbox.
- Composable parts in the shadcn/ui style, so each piece can be extended rather than overridden.
- Free and MIT, with about 4,000 GitHub stars.
What PixilUI adds
- The agent moments: approvals with a risk level and a receipt, runs with a waiting step, tool calls with their JSON, thinking and streaming text.
- Each item's states, keys and reduced-motion behavior listed on its page.
- llms.txt, an agent skill and a remote MCP server for coding agents.
Install
Kibo UI
npx kibo-ui add ganttpnpm dlx kibo-ui add ganttyarn dlx kibo-ui add ganttbunx --bun kibo-ui add ganttPixilUI, after adding the registry to components.json (installation)
npx shadcn@latest add @pixilui/approval-cardpnpm dlx shadcn@latest add @pixilui/approval-cardyarn dlx shadcn@latest add @pixilui/approval-cardbunx --bun shadcn@latest add @pixilui/approval-cardUsing both
Use both: Kibo UI for planning boards and editors, PixilUI where the agent works. Kibo UI reads shadcn/ui's theme and PixilUI its own tokens, so keep one library per surface.
Questions
Does Kibo UI have AI components?
Its registry listed 41 components on 4 November 2026, such as Gantt, Kanban and an editor, and none of them was an AI or agent item. For approvals, runs, tool calls, thinking and streaming text, add PixilUI next to it.
Is Kibo UI part of Shadcnblocks?
Its GitHub repository is now github.com/shadcnblocks/kibo, and its site links to Shadcnblocks in the header. The components are still free under MIT.
Can Kibo UI and PixilUI share a project?
Yes. Kibo UI builds on shadcn/ui and PixilUI installs into components/pixilui with the same CLI, so neither overwrites the other.
More comparisons
- PixilUI and shadcn/ui
- PixilUI and AI Elements
- PixilUI and assistant-ui
- PixilUI and CopilotKit
- PixilUI and prompt-kit
- PixilUI and Arc
- PixilUI and affectUI
- PixilUI and beUI
- PixilUI and React Bits
- PixilUI and AI SDK Agents
- PixilUI and BoardUI
- PixilUI and ReUI
- PixilUI and Magic UI
- PixilUI and Aceternity UI
- PixilUI and Tool UI
- PixilUI and LlamaIndex chat-ui
- PixilUI and Chatbot UI
- PixilUI and Shadcnblocks
- PixilUI and shadcn.io
- PixilUI and Agents Kit
Sources
Read on . If something here no longer matches Kibo UI's site, write to hello@pixilui.com and we will fix it.