Convert non-eccentric <ellipse> to <circle> (`convertEllipseToCircle`)

Replaces ellipses with equal radii by <circle> elements, which are more compact.

What Convert non-eccentric <ellipse> to <circle> does in SVGO

SVGO applies convertEllipseToCircle as part of its plugin pipeline. On SVGOMG.net the toggle is labeled Convert non-eccentric <ellipse> to <circle> (enabled by default). Optimization runs entirely in your browser — files are not uploaded to a server.

Use SVGOMG.net with Show original to compare before and after. If output looks wrong, disable this plugin first, then re-enable related transforms one at a time.

When to enable

Icons and UI with perfect circles exported as ellipses.

When to disable

Non-circular ellipses that must stay elliptical.

Watch out for

Only affects eccentricity-equal ellipses.

Try it

Open SVGOMG.net and load your SVG (file, paste, or demo).
Find Convert non-eccentric <ellipse> to <circle> in the Features panel (convertEllipseToCircle).
Toggle the plugin and compare the preview; download when satisfied.

Part of: Path and shape optimization

This plugin is covered in the Path and shape optimization topic guide along with related transforms.

SVGO Plugin Guide

Browse the SVGO Plugin Guide or read the full SVG optimization walkthrough.