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D2 vs Graphviz: catalog facts
D2	Graphviz
Free Free and open source under the Mozilla Public License 2.0.	Free Free and open source.
Windows, Command line	Windows, Command line
Diagrams as text that fit into version control Simple syntax with automatic layout	Diagrams generated automatically from plain text Exports to PNG, SVG, PDF and PostScript
Requires learning the D2 syntax Less fine control than drawing by hand	Requires learning the DOT language Limited manual control over automatic layouts
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.