21st dev provides an open-source platform for discovering, sharing, and generating reusable React UI tools for frontend development.
21st's investors include Y Combinator, Hustle Fund, Pioneer Fund, Sahin Boydas, AAL VC.
21st is headquartered in San Francisco, United States.
21st dev provides an open-source platform for discovering, sharing, and generating reusable React UI tools for frontend development.
21st is at the Seed stage.
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"21st — Funding & Investors." VCBacked, March 24, 2026, https://www.vcbacked.co/company/21st. Accessed August 13, 2026.
VCBacked. (2026). 21st — Funding & Investors. Retrieved August 13, 2026, from https://www.vcbacked.co/company/21st
{{cite web |title=21st — Funding & Investors |url=https://www.vcbacked.co/company/21st |website=VCBacked |access-date=August 13, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated