A lot of times, we need to create a flow diagram to integrate two or more APIs/Systems/Interfaces or describe certain processes. Sometimes it could be internal or we need to share with a third party.

What tool do you prefer or recommend?

Feel free to recommend one due to different characteristics: friendly interface, beautiful icons, being minimalistic, etc.

My list:

• Balsamiq More for wireframes but it is pretty
• draw.io Pros: It has a lot of templates and types, it has good integration with google drive. Cons: it would be nice to have prettier icons and a better shared-comments system.
• Lucidchard I just started to use it, it seems pretty nice, it has a basic free version.

Complete list including recommendations from comments:

• StarUml
• Balsamiq
• draw.io
• Lucidchard
• whimsical.co
• code2flow
• PlantUML