Free online DOT to SVGZ converter

Source format: DOT

DOT is a plain-text graph description format used by Graphviz and related tools. It is commonly used by developers, data engineers, researchers, and documentation authors to describe directed and undirected graphs such as dependency trees, flowcharts, network diagrams, and state machines. A DOT file stores the structure of the graph in text form, which makes it easy to generate, edit, version-control, and automate.

Target format: SVGZ

SVGZ is a compressed SVG file, usually gzip-compressed and saved with the .svgz extension. It contains the same vector graphics data as SVG, but in a smaller file size. SVGZ is useful for web graphics, diagrams, and illustrations where you want scalable output with reduced bandwidth and storage use. It is supported by many browsers and vector-aware applications, though some older tools may handle plain SVG more reliably than SVGZ.

How to convert DOT to SVGZ

The best workflow is to use Graphviz, because it understands DOT natively and can render directly to SVG. Then, if needed, compress the SVG output to SVGZ.

1. Install Graphviz on your computer if it is not already available.
2. Render the DOT file to SVG using the dot command:
   dot -Tsvg input.dot -o output.svg
3. Compress the SVG to SVGZ. On many systems, you can gzip the SVG and rename it to .svgz:
   gzip -c output.svg > output.svgz
4. Verify the result by opening output.svgz in a browser or vector graphics viewer that supports compressed SVG.

If you prefer a graphical workflow, some editors and diagram tools can export to SVG first, after which you can compress the file to SVGZ. However, for DOT files, Graphviz command-line conversion is usually the most accurate and reliable because it preserves graph layout rules and DOT-specific attributes.

You can also convert the file on 101convert.com for free, without installing any software.

Notes on quality, compatibility, or limitations

DOT to SVGZ is a vector-to-vector conversion, so the diagram remains resolution-independent and should scale cleanly at any size. The main limitation is that SVGZ is just compressed SVG, so the visual quality depends entirely on how Graphviz renders the graph.

Keep these points in mind:

• Fonts: If the target system does not have the same fonts, text appearance may change. For consistent results, use common fonts or embed text as paths when appropriate.
• Browser support: Most modern browsers support SVGZ, but some applications expect plain SVG instead.
• Compression step: The conversion is not a single native DOT-to-SVGZ export in many tools; it is often DOT → SVG → SVGZ.
• Complex graphs: Very large graphs may produce large SVG files before compression, so SVGZ can help reduce file size significantly.