The new Database Editor feature on Replit allows users to easily build and manage apps with real databases powered by Postgres, a popular database used by half of all professional software developers. With the Database Editor, users can view their app's data in a spreadsheet-like view, make changes instantly, and filter data by various criteria. This feature makes it easy for anyone to use databases without requiring coding knowledge, aligning with Replit's mission to make powerful software accessible to everyone.