Command-line tool

mermaid-cli

brew/mermaid-cli

Checked 26 Oct 2026, 08:31 UTC · Still published on npm

CLI for Mermaid library

Website Source

At a glance

Type

Command-line tool

Install on

Windows, macOS, Linux

Last checked

26 Oct 2026, 08:31 UTC

Install it

Windows

npm install -g @mermaid-js/mermaid-cli

macOS

brew install mermaid-cli
npm install -g @mermaid-js/mermaid-cli

Linux

brew install mermaid-cli
npm install -g @mermaid-js/mermaid-cli

Convert a file to the specified format (automatically determined from the file extension)

mmdc -i input.mmd -o output.svg

Specify the theme of the chart

mmdc -i input.mmd -o output.svg -t forest

Specify the background color of the chart (e.g. `lime`, `"#D8064F"`, or `transparent`)

mmdc -i input.mmd -o output.svg -b color

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