Convert Windows Metafile (.wmf) to WebP Image (.webp) online for free. Fast, secure image conversion with no watermarks or registration.
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Choose your output settings. The default settings work great for most files.
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WMF (Windows Metafile) is Microsoft's legacy vector format from the Windows 3.0 era, containing GDI drawing commands for clip art, diagrams, and graphics. WMF files survive in old documents and enterprise applications but are increasingly unsupported by modern software. WebP is Google's modern image format offering both lossy (25-34% better than JPEG) and lossless (26% smaller than PNG) compression with universal browser support.
Converting WMF to WebP rasterizes the legacy vector graphics and saves the result in the most storage-efficient modern raster format. WebP is the optimal choice when WMF content needs to be served on the web — the format produces the smallest possible files for both lossy and lossless quality levels, minimizing page load times and bandwidth usage.
WebP's superior compression makes it the most efficient format for serving WMF-originated content on the web. Legacy clip art and diagrams from WMF files produce very small WebP files — the flat colors, solid shapes, and limited palettes typical of WMF content compress exceptionally well in WebP. A WMF graphic that renders to a 500 KB PNG typically produces a 130 KB lossless WebP or a 30-50 KB lossy WebP.
Modern web performance metrics (Core Web Vitals) penalize slow-loading images. Converting legacy WMF graphics to WebP instead of PNG or JPEG improves Largest Contentful Paint (LCP) scores for pages displaying these graphics. For documentation sites, knowledge bases, and corporate intranets that display many legacy diagrams, WebP's efficiency makes a measurable difference in page performance.
The WMF GDI records are rendered onto a raster canvas at the specified resolution using ImageMagick or LibreOffice. The rendered image is encoded as WebP using Sharp or ImageMagick. Lossy mode uses VP8 encoding with configurable quality (default 85). Lossless mode uses VP8L encoding. Both modes support alpha channel transparency — WMF graphics with transparent backgrounds produce WebP files with clean transparency. ICC color profiles can be embedded. The rendering resolution determines the pixel dimensions of the output.
Lossy WebP at quality 85 produces output visually indistinguishable from the rendered WMF source for typical clip art and diagram content. Flat colors and sharp edges are preserved well. Lossless WebP provides pixel-perfect output identical to what a PNG conversion would produce, at 26% smaller file sizes. For the simple, geometric content typical of WMF files, even moderate lossy quality settings produce excellent results because the content has clear edges and solid fills that WebP handles efficiently.
| Device | WMF | WebP |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Partial |
| Web Browser | No |
WMF to WebP conversion produces the most storage-efficient web-ready images from legacy Windows vector graphics. The combination of WMF's simple graphical content and WebP's superior compression creates exceptionally small files suitable for modern web performance requirements.
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| Native |
| الميزة | WMF | WebP |
|---|---|---|
| الاسم الكامل | Windows Metafile | WebP Image |
| الامتداد | .wmf | .webp |
| الأفضل لـ | Vector graphics | Superior compression |