Coda

Coda is an all-in-one workspace that combines text documents, connected tables (databases), and small apps on a single canvas. It is built by the company Coda and is popular mainly with teams and power users who want more than a plain document but don't want to juggle a separate wiki, spreadsheet, and database.

It works by letting you drop 'building blocks' into a doc — text, tables, buttons, charts, or calendars. Tables connect to each other, edits sync everywhere, and every team member can have their own view (filter, card, calendar). On top of the data you write formulas that apply across the entire document.