head to head · open source
ActivePieces vs ui-builder
ActivePieces has 25,364 GitHub stars, 4,428 forks, 573 open issues and last shipped yesterday. ui-builder has 674 stars, 96 forks, 2 open issues and last shipped 4 months ago. ActivePieces leads on adoption by 3,663% (25,364 vs 674 stars). ActivePieces is written in TypeScript under a custom or non-standard licence; ui-builder is written in TypeScript under MIT. ActivePieces has attracted 17% as many forks as stars, ui-builder 14%. ActivePieces was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| ActivePieces | ui-builder | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 674 |
| License | Custom / other | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-04 | 2026-07-03 |
| Forks | ⑂ 4.4K | ⑂ 96 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ActivePieces if
- You weight community size — 25K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick ui-builder if
- You want the ui-builder feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and ui-builder fits your workflow better
About ActivePieces
An open source replacement for Zapier Documentation 🌪️ Create a Piece 🖉 Deploy 🔥 Join Discord 🤯 Welcome to Activepieces All in one AI automation designed to be extensible through a type safe pieces framework written in TypeScript . When you contribute pieces to Activepieces they become automatically available as MCP servers that you can use with LLMs through Claude Desktop, Cursor or Windsurf! 🔥 Why Activepieces is Different: 💖 Loved by Everyone : Intuitive interface and great experience for both technical and non technical users with a quick learning curve. 🌐 Open Ecosystem: All pieces are open source…
read the full ActivePieces overview →
About ui-builder
UI Builder — Visual Editor for Your React App UI Builder is a shadcn/ui package that adds a Figma style editor to your own product, letting non developers compose pages, emails, dashboards, and white label views with the exact React components you already ship. Layouts are saved as plain JSON for easy versioning and can be rendered instantly with dynamic data. View Full Documentation UI Builder is now part of BTST — ship full stack features faster with production ready plugins that generate database schemas, API routes, and pages for Next.js, TanStack Start, and React Router. Installation Quick Start with…
read the full ui-builder overview →
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Frequently asked questions
Is ActivePieces or ui-builder more popular?
ActivePieces has 25,364 GitHub stars and ui-builder has 674. ActivePieces has the larger community by that measure.
Are ActivePieces and ui-builder free?
Both are open source. ActivePieces has no licence declared in this registry, and ui-builder is licensed under MIT. Both are free to self-host.
What is the difference between ActivePieces and ui-builder?
ActivePieces is written in TypeScript and ui-builder in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ActivePieces or ui-builder?
Choose ActivePieces if you want the larger community (25,364 stars) or its Custom / other licence terms. Choose ui-builder if its feature set, stack or MIT licence fits better. Both are self-hostable.