Step 1: Provide your BMP files using the button above or by toss and let go.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Fetch your converted WebP files.
BMP to WebP Conversion FAQ
Does BMP to WebP conversion preserve transparency?
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Transparency survives when WebP is PNG, WebP, TIFF, GIF, or SVG. Converting to JPG flattens the alpha channel against a white background — if you need transparency, pick a transparency-aware target instead of WebP. WebP is Google’s 2010 image format, built from the VP8 keyframe encoder and intended to replace JPG, PNG and GIF at once.
Can I get transparency once the image is WebP?
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The WebP format supports it, but the conversion cannot invent it. A BMP has no alpha channel, so every pixel including the background arrives fully opaque. Run /image-removebackground/ afterwards to cut the subject out — then the alpha channel WebP provides has something to store. WebP is typically 25-35% smaller than an equivalent JPG and far smaller than an animated GIF, with universal browser support since 2020.
How much quality will I lose going from BMP to WebP?
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At quality 80-85 the difference is invisible at normal viewing distance and the file typically drops by 60-80%. The catch is that it is one-way: re-saving the WebP repeatedly compounds the artefacts each time. Keep the BMP as the master and regenerate the WebP from it whenever you need a new size. BMP needs no decoder library at all, so it remains the safe interchange format for embedded systems and legacy Windows tooling. WebP offers both lossy and lossless modes, with alpha transparency and animation available in either.
What happens to EXIF metadata when converting BMP to WebP?
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In most conversions, camera EXIF fields such as the camera model and GPS position are not carried into the WebP. There is no setting on this page to keep or remove metadata, so check the result with a metadata viewer if it matters.
Can I batch-convert hundreds of BMP files to WebP at once?
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Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.
Are my BMP files private during conversion?
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Yes. Uploaded BMP files are processed on our own conversion servers, no person reviews them, and they are never shared. The upload and the converted WebP are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
