How it works
What does compression remove?
Comments, XML declarations, editor namespaces (inkscape:, sodipodi:), empty <defs>/<title>/<desc> tags, redundant whitespace, and rounds numeric precision in path data. Your artwork renders pixel-identical.
Is this actually lossless?
Visually yes — geometry is preserved within the precision you set. We don't rewrite paths, merge shapes, or guess at "unused" attributes, which is how naive minifiers break rendering. Compare before/after with the live preview to confirm.
What's the precision slider for?
SVG coordinates are often exported with 6+ decimal places that are invisible on screen. Rounding to 1–2 decimals usually cuts path data size significantly with zero visible difference. Higher precision = safer but smaller savings.
100% private — zero upload
Everything runs inside your browser using the native DOM parser. Files never touch a server. Works offline once the page loads. No accounts, no limits, no watermarks.