Analyse graphviz

Inspect Graphviz DOT structure, attributes, and relationships before layout.

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ToolGraphviz Analyzer

Input

Output

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How it works

DOT source is tokenized into graph, node, edge, attribute, and subgraph statements; identifiers and quoted strings are parsed into an abstract graph for inspection. Layout engines later interpret attributes such as rankdir and shape to place nodes.

DOT separates graph structure from layout attributes.

Worked example

Analyze Digraph

Analyze a simple directed graph in DOT syntax

Input

											digraph G {
    A [label="Start"]
    B [label="End"]
    A -> B
}

Output

												Graphviz DOT Analysis
=====================

Graph type: Directed graph (digraph)
Has subgraphs: false
Node definitions: 2
Directed edges (->): 1
Undirected edges (--): 0
Line count: 5

Note: Graphviz rendering requires the Graphviz engine.
Use https://dreampuf.github.io/GraphvizOnline/ for online rendering.

--- Source ---
digraph G {
    A [label="Start"]
    B [label="End"]
    A -> B
}

When to use this

Dependency reviews, CI validation, and documentation builds inspect DOT graphs.

Edge cases

A quoted identifier can contain punctuation that is not a separator.
Undirected and directed edges have different meanings.
An attribute typo may parse successfully yet have no layout effect.

References

Graphviz documentation