Curio

Curio provides a freeform notebook environment on macOS where users can capture text, markdown, images, PDFs, web links and multimedia within a single project file. The interface lets you place content anywhere on an idea space and enrich it with integrated tools such as mind maps, tables, index cards, albums, pinboards and Kanban‑style stacks.

Organizational features include tags, dates, priority, rating, percent‑complete fields and deep‑link support, allowing query‑based collections and synced figures. All data remains local to the project file, avoiding the need for multiple external services or scattered files.

The application targets a broad range of professionals and students—designers, writers, researchers, teachers, scientists, project managers, developers, lawyers and entrepreneurs—who need a unified place to gather, structure and develop project‑related information. It is offered as a stable macOS‑only product with a license or subscription model for updates.