VizMermaid, Graphviz and PlantUML for PHP

Render diagrams to SVG, PNG or PDF natively, in PHP, with no Node, browser, Graphviz or Java needed, and convert between the three languages.

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Compatibility

GitHub

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Mermaid, natively

30+ diagram families, themes and the hand-drawn look, pinned to Mermaid 12.1, drawn in PHP. mermaid-cli is the fallback.

Mermaid compatibility

🕸️

Graphviz, natively

Every layout, dot to neato, fdp, twopi, circo and the rest, written clean-room from the published papers and dot's observed output. dot is the fallback.

Graphviz compatibility

🌱

PlantUML, natively

Every diagram family, ported from PlantUML's MIT distribution and sized as the jar sizes it, with its preprocessor, themes and standard library. The jar is the fallback.

PlantUML compatibility

🖨️

SVG, PNG and PDF

Vector PDF with the font embedded and the text selectable, PNG through ext-gd, SVG everywhere. An export only writes its file once the image has rendered in full.

Rendering and export

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Conversion

Shared models for graphs, class, state, entity-relationship, sequence, use case and activity diagrams. A diagram crosses in its own family where the target language has it.

Conversion routes

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Fits an event loop

Every native step is a generator that yields between small units of work, so a large diagram can be spread over several frames.

Step by step