OpenBio is an open source bento grid link-in-bio builder. 12 card types: links, notes, images, Spotify, GitHub stats, Maps, countdown, weather, Twitter/X, booking, email collect, profile views. AI tools to write your bio, build your profile, and draft card content. Analytics: views, clicks, geo, device breakdown, and weekly digest email. 10+ themes, dark mode, custom domains, OG image generation. Free to start. Pro at $9/mo with a 7-day trial. github.com/vanxh/openbio