Optimize SVG files — smaller, cleaner, safe
Shrink SVG files by stripping editor metadata and redundant markup. Optimization runs locally in your browser with a safety pass that removes scripts and external references before the file is ever rendered.
What this tool does
SVGs exported from design tools carry editor-specific metadata, unused definitions, and verbose paths that bloat file size by multiples in real-world projects. This tool applies SVGO-style optimization — a well-established, deterministic set of transforms — to produce a smaller SVG that renders identically.
SVG is also an active content format, which makes it a vector for script injection when embedded in web pages. Before optimizing, the tool sanitizes the markup: script elements and external references are removed. What you get back is a static, safe, smaller vector file.
How to minify an SVG without uploading it
-
Drop in the SVG. Add one or more SVG files to the tool on the home page.
-
Optimize. The sanitizer strips scripts and external references, then optimization passes reduce the markup.
-
Download the clean SVG. Compare sizes and save the optimized file locally.
Supported operations
This list is generated from CompressKit's capability registry — only implemented and tested operations appear here.
-
Reduce file size
SVGO-based structural optimization plus a sanitizing pass that strips scripts and external references.
Frequently asked questions
- Will SVG optimization change how my graphic looks?
- The goal is byte-identical rendering with fewer bytes: metadata, unused defs and redundant attributes are removed, geometry is preserved. If your file uses exotic filter effects, verify visually — some render slightly differently across browsers.
- Is it safe to use an SVG I downloaded from the internet?
- Raw SVG files can contain scripts. This tool strips script elements and external references before optimizing, so the output is a passive graphic. That makes it safer to embed in web pages.
- Does the SVG get uploaded anywhere?
- No. The file is parsed and rewritten entirely in your browser. Nothing leaves your device — not the vector data, not the filename.
- Can I convert an SVG to PNG here?
- Yes, at a size you choose. Remember the PNG is a raster: it no longer scales infinitely. For icons and logos rendered at fixed sizes that is usually fine; for artwork you may prefer to keep the optimized SVG.
Ready to try it?
The SVG compressor tool runs on this site with no upload step — your file is processed by your own browser and saved back to your device.
Open the SVG compressor tool