Cacoo
Cacoo was developed in 2005 by the Japanese firm Nulab as a part of a three-installment series of team communication software. It comes with hundreds of templates that are suitable for teams working on programming, product development, marketing, and project management. We picked it as the greatest option for straightforward usage, since it is simple to use and operate, especially for non-tech-aware users.
Cacoo is a completely web-based program with a simple user interface that enables users to begin producing diagrams quickly. You can create flowcharts, wireframes, and network diagrams using a collection of templates and forms, or insert photos and screenshots into any design.
Cacoo connects with Visio, Slack, and cloud services like Docs, Google Drive, Adobe Creative Cloud, Confluence, Dropbox, and Box. Files may be exported as SVG, PDF, or even PowerPoint files, or they can be integrated into websites and wikis. Finally, Cacoo includes a collaborative plan that enables real-time project creation, editing, and commenting.
Highest rating: 4.4 stars (from 162 reviews)
Access it here: https://cacoo.com/