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Mermaid vs Msc-generator: catalog facts
Mermaid	Msc-generator
Free Free and open source under the MIT licence.	Free Free and open source under the GNU AGPLv3 license.
Web, Command line	Command line
Diagrams are plain text, so they diff and review like code Rendered natively by GitHub, GitLab and most documentation generators	Generates multiple diagram types from text input Includes a graphical interface
Layout is automatic, so fine control over positioning is limited Complex diagrams become hard to read in source form	It generates signalling charts, block diagrams, and graphs from text input.
Web application, Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: AGPL-3.0-or-later
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 8, 2026

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