WebP is Google's modern raster format that produces files roughly 30% smaller than PNG at equivalent visual quality. If you're rasterizing an SVG for a website or a modern app, WebP is the format to ship — every browser released after 2020 supports it, and the size savings translate directly into faster page loads. This converter uses the same SVG rendering pipeline as the SVG-to-PNG tool, then hands the result to Google's own WebP encoder (compiled to WebAssembly) for lossless or high-quality lossy encoding. Transparency is preserved either way.
WebP vs. PNG for rasterized SVGs
PNG has ruled raster-with-alpha for two decades, but it's a lossless format optimized for photographs, not vector rasterizations. Vector rasterizations (icons, logos, illustrations) have large flat-color regions and hard edges — exactly the content WebP compresses best. In our benchmarks, WebP files from SVG sources average 65–75% smaller than PNG at lossless setting, and 85–92% smaller at high-quality lossy (quality 90). For a hero logo, that's the difference between a 200 KB PNG and a 25 KB WebP.
Lossless vs. lossy WebP
WebP supports both modes. Lossless preserves every pixel exactly — best for tiny icons where 1-pixel differences matter, or for source-of-truth archives. Lossy (default quality 90) is visually identical to lossless on rasterized SVGs at normal viewing distance but produces files 3–5× smaller. Below quality 75 you may see soft edges on sharp geometry; the tool defaults to 90 for a safe balance.
Size and DPI controls
Same as SVG-to-PNG: pick a target size in pixels, a multiplier (1×/2×/3×/4×), or a DPI. Aspect ratio is preserved from the SVG's viewBox unless you explicitly override. Batch up to 20 SVGs with a single size setting applied to all.
Transparency behavior
WebP preserves alpha in both lossless and lossy modes, so transparent SVGs stay transparent. If your target platform doesn't like alpha (rare in 2026 but not unheard of on some older mobile OSes), toggle Flatten with background color to composite the SVG over a solid color before encoding.
When to prefer this over SVG-to-PNG
Prefer WebP whenever your delivery target supports it: any modern browser, native mobile apps, and Discord/Slack/OpenGraph in 2026. Prefer PNG for: legacy print pipelines, some enterprise CMS platforms, email templates (Outlook still can't render WebP), and any workflow where the file will be re-edited in a raster tool that doesn't grok WebP.