Mermaid
Diagrams from text, right in Markdown.
LibraryOpen source
Generates flowcharts, sequence diagrams, ER and others from plain text, with native support in GitHub, GitLab and many editors.
When to use
To keep diagrams versioned alongside code and documentation.
When to avoid
For very large diagrams or ones with fine visual layout control.
Alternatives
They do a similar job. Compare before choosing.
Virtual whiteboard with a hand-drawn look.
AppOpen source★ 134.9K
Related
From the same area, with a close purpose.
Documents, wikis and databases in a single workspace.
ServiceFreemium