Звичайно, Visio чудовий.

An open source virtual hand-drawn style whiteboard. Collaborative and end-to-end encrypted.

A modern diagram scripting language that turns text to diagrams.

Tldraw is a library for creating infinite canvas experiences in React. It's the software behind the digital whiteboard tldraw.com.

Browser-based diagramming components and applications.

LibreOffice is an integrated office suite based on copyleft licenses and compatible with most document formats and standards. Libreoffice is backed by The Document Foundation, which represents a large independent community of enterprises, developers and other volunteers moved by the common goal of bringing to the market the best software for personal productivity. LibreOffice is open source, and free to download, use and distribute.