The archive · Developer & Business Tools · Product decision · 2026
ThreeUI bets an open-source catalog feeds paid Pro and sponsorships; 5.1k stars in 2 weeks
DesignCode's Three.js UI catalog ships a complete MIT Community edition and sells Pro source bundles; 5.1k stars within two weeks of the 2026-08-21 launch.
ThreeUI
What the business is
ThreeUI is an open-core catalog of Three.js UI components: the free Community edition ships the complete MIT source of 50 components with live renderers and no login, while Pro members pay for entitled source bundles through a CLI and sponsors pay for README and website placement.
How it started
ThreeUI is the Three.js component catalog from Meng To, creator of the Design+Code education brand (its support address and npm scope are @designcodeio). On 2026-08-21 the public GitHub repo launched the login-free Community edition, explicitly the open half of the project: same shell and catalog as the main site, with only Pro and Beta components removed.
What happened
The README doubles as a sales page: sponsorship starts at $500/month for a linked README banner, $1,500 for a website placement, and 'Get Pro' points to threeui.com/pricing. Pro implementation source is deliberately never published to npm; paying members authenticate in the browser and download entitled source bundles with the public CLI, while the public repo's automation syncs the Community subset from a private main-project snapshot.
No ending yet — it is still running.
Background
ThreeUI is an open-core catalog of Three.js UI components from Meng To, the creator of Design+Code. The Community edition launched publicly on GitHub on 2026-08-21 with the same application shell, layout, search, themes and live renderers as the main project — 50 parent components, 164 browse results and their complete implementation source, MIT licensed, with no login and no account.
The bet is that giving all of that away free will make ThreeUI the default library for Three.js UI work, then convert the audience into paying users. The paid product is not withheld code: Pro and Beta components stay out of the public catalog, and Pro source is delivered only to authenticated members through a CLI that checks entitlement on every request, while sponsors pay from $500 to $3,000 a month for README and website placement.
Within two weeks the repo drew 5.1k stars and 505 forks (2026-09-04 crawl), and the README claims roughly 90,000 threeui.com views per day as of 26 August 2026 — self-reported traffic that makes the sponsorship pitch concrete but says nothing yet about conversion to paid Pro.
What has to be true
- Dated, platform-verifiable traction: repo created 2026-08-21 with 5.1k stars and 505 forks by the 2026-09-04 crawl — an audience forming in two weeks.
- A clean open-core bet: complete MIT Community source plus live renderers and no login, while Pro source is never published and arrives only via an entitlement-checked CLI.
- A business model visible in the material: three sponsorship tiers ($500-$3,000/month) and Pro pricing links sit in the public README itself.
- Self-reported funnel numbers — roughly 90,000 threeui.com views/day as of 2026-08-26 — indicate real traffic, though conversion is not yet measurable.
What can be applied
Open-core works when the free edition is complete enough to become a community default and the paid tier sells convenience, not withheld code — but traffic alone does not prove conversion.
Aftermath
As of 2026-09-05 ThreeUI is live and growing visibly: the Community repo (created 2026-08-21) held 5.1k stars and 505 forks at the 2026-09-04 crawl, the npm package @designcodeio/threeui is published, and the README continues to sell Pro and sponsorship plans against a self-reported roughly 90,000 daily site views. The record contains no funding, revenue or team details, so conversion from the free audience to paying members is not publicly measurable.
Sources
spotted an error? The archive wants to know.
Your turn
You just read one. Describe what you are building, and see who is betting on the same thing.
Free account · 3 free questions · no card