For turning hand-drawn diagrams into digital documents, Sketch2scheme is a good choice. This AI-powered service converts flowcharts and diagrams into digital schemes, automatically recognizing and converting nodes, connections and text. It can export to a variety of formats, including PNG, SVG and PDF, and can be used in conjunction with visual editors like Draw.io. Sketch2scheme is good for people who need to move from paper brainstorming to digital documents as quickly and painlessly as possible.
Another tool worth a look is Lucidchart, a cloud-based diagramming tool that's got some AI-powered tools for automating diagram creation. Lucidchart supports real-time collaboration and integrates with Google Workspace and Microsoft. It's good for teams working on projects with lots of moving parts, offering a broad range of diagramming tools and integration with other tools to help communication and workflow.
If you're looking for a more general-purpose tool for creating lots of different types of diagrams, EdrawMax is worth a look. This online tool supports more than 280 types of diagrams and has AI-assisted diagramming abilities. It's got a large collection of tools, a cloud-based workspace for collaboration, and a large library of templates and symbols. EdrawMax can export to a variety of file formats, and is good for a variety of industries, including marketing, education and engineering.