What should I try next for .mmd files?

Choose the MMD file on the home page. OpenOnPhone renders the Mermaid diagram locally and keeps the source visible. Use Mermaid tooling when you need advanced theming, export, editing, or CI validation.

.mmd

Open MMD on Phone

Quick view supported

OpenOnPhone can show a quick view for this format.

Yes. OpenOnPhone can show a quick local view for .mmd files in your browser.

What is a .mmd file?

MMD is a common extension for Mermaid text diagram source files.

Why is .mmd hard to open on a phone?

Phone viewers usually show MMD as plain text instead of a diagram.
Many online Mermaid renderers require uploading the diagram source.
A local preview helps inspect repository diagrams without leaving the browser.

What OpenOnPhone does not do

OpenOnPhone is for quick local inspection. It does not replace the original professional app for editing, conversion, exact layout, formulas, measurements, security review, or full workflow features.

MIME examples

text/plain
text/mermaid

Next steps

Choose the MMD file on the home page.
OpenOnPhone renders the Mermaid diagram locally and keeps the source visible.
Use Mermaid tooling when you need advanced theming, export, editing, or CI validation.

Related formats

FAQ

What is a .mmd file?: MMD is a common extension for Mermaid text diagram source files.
Can OpenOnPhone show a quick view for .mmd files on phone?: Yes. OpenOnPhone can show a quick local view for .mmd files in your browser.
What should I try next for .mmd files?: Choose the MMD file on the home page. OpenOnPhone renders the Mermaid diagram locally and keeps the source visible. Use Mermaid tooling when you need advanced theming, export, editing, or CI validation.