Convert BMP to WEBP
Free online BMP to WEBP converter that runs in your browser. Your files stay on your device.
How to convert BMP to WEBP
- Add your BMP file. Drag it onto the box above, click to browse, or paste it from the clipboard. Multiple files are fine.
- Check the target. WEBP is preselected. Pick High, Medium or Small quality depending on whether you need a master copy or a small file.
- Download. The conversion is instant. The WEBP file downloads automatically when it is done.
Why convert BMP to WEBP?
BMP files are very large and not viewable in browsers. WEBP cuts file size by 25–35% for faster websites.
BMP vs WEBP
| BMP | WEBP | |
|---|---|---|
| Full name | Bitmap | WebP |
| Type | Image | Image |
| MIME type | image/bmp | image/webp |
| About | BMP is an uncompressed Windows image format. Huge files, but trivially simple and supported by legacy software. | WEBP is Google's modern web image format, 25–35% smaller than JPG and PNG with transparency and animation. Not accepted by many older apps and upload forms. |
What makes this converter different
- Nothing is uploaded. Other converters send your file to a server, queue it, and keep a copy for hours. Here the work happens in your browser with WebAssembly, so private videos, voice memos and documents never leave your computer.
- No limits, no sign-up, no watermark. There is no server to pay for, so there is no reason to cap file size or count.
- Real ffmpeg quality. Video and audio use the same ffmpeg encoders professionals use (x264, LAME, libvpx, FLAC), not a stripped-down web codec.
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Frequently asked questions
Is it safe to convert BMP to WEBP here?
Yes. The conversion runs entirely inside your browser using WebAssembly. Your file is never uploaded to a server, so nothing can leak, be stored or be seen by anyone. You can even disconnect from the internet after the page loads.
How long does BMP to WEBP conversion take?
Images convert instantly, usually under a second even for large photos.
Is there a file size limit?
There is no server-side limit because there is no server. The practical limit is your device memory: browsers can handle files up to about 2 GB. Very large videos work better on a desktop than a phone.
Will the quality drop?
WEBP is a lossy format, so a small amount of detail is discarded. At the default Medium setting the difference is invisible or inaudible for almost all content. Choose High for master copies or Small for messaging and web use.
Can I convert several BMP files at once?
Yes. Drop or select as many files as you like; they are converted one after another and each gets its own download button.