Compare software

dbdiagram.io vs Mermaid: catalog facts
dbdiagram.io	Mermaid
Free Described on its site as a free tool.	Free Free and open source under the MIT licence.
Web	Web, Command line
Diagrams generated from plain text Nothing to install	Diagrams are plain text, so they diff and review like code Rendered natively by GitHub, GitLab and most documentation generators
Requires learning its diagram language Runs only in the browser	Layout is automatic, so fine control over positioning is limited Complex diagrams become hard to read in source form
Web application	Web application, Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

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