Herbarium is a quiet home for the HTML explainers, cheat sheets and tiny interactive tools that AI makes. Save a page from the browser, a chat export or a file, read it offline with its interactivity intact, highlight it, and let adaptive review bring it back right before you would forget it.

Today is a dashboard with a review ring, a garden of page vitality and a grove of reading paths. Paths grow a tree as you read them, review sessions end with a summary and a streak, and ten type styles change the app's voice. There is also a link graph, full-text search with filters, AI remix and organizing, a command palette, light and dark themes, and an English and French interface.

Your pages stay plain .html files in a folder you own. Herbarium also speaks the Model Context Protocol, so coding agents can save, search and schedule pages.