If you're looking for online diagramming tools that can generate AI diagrams and have a big library of templates, ProcessOn is a good choice. It lets you create a range of diagrams, including mind maps, flowcharts, org charts and more. ProcessOn has AI-generated diagrams, real-time collaboration and a big library of templates. It's geared for project managers, product managers and business developers, with different pricing levels for individuals and teams.
Another good option is EdrawMax, which supports more than 280 types of diagrams and comes with a library of 1500+ templates and 26,000 symbols. It also supports common file formats and has AI-assisted diagramming abilities. EdrawMax is good for marketing, product development, education, engineering and design, and comes with a free trial and downloadable versions for Windows, macOS and Linux.
If you want to work collaboratively, Slatebox uses AI to generate editable diagrams from natural language prompts. It has real-time collaboration abilities, customizable templates and integration with Google Image Search. Slatebox is good for brainstorming, mind-mapping and design sessions, and has flexible pricing options for teams of any size.