Gliffy: https://www.gliffy.com/ https://www.gliffy.com/ $7.99 per month for a single user or $4.99 per user per month for small teams. It was one of the first

Gliffy: https://www.gliffy.com/ https://www.gliffy.com/ $7.99 per month for a single user or $4.99 per user per month for small teams. It was one of the first browser-based diagram tools but it's kept up with the competition. Gliffy provides a wide variety of diagram types, design and theming options.