Convert BMP to PNG
Free online BMP to PNG converter that runs in your browser. Your files stay on your device.
How to convert BMP to PNG
- 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. PNG 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 PNG file downloads automatically when it is done.
Why convert BMP to PNG?
BMP files are very large and not viewable in browsers. PNG is lossless, keeps transparency and works everywhere.
BMP vs PNG
| BMP | PNG | |
|---|---|---|
| Full name | Bitmap | Portable Network Graphics |
| Type | Image | Image |
| MIME type | image/bmp | image/png |
| About | BMP is an uncompressed Windows image format. Huge files, but trivially simple and supported by legacy software. | PNG is lossless with transparency support. Ideal for screenshots, logos and graphics; larger than JPG for photos. |
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 PNG 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 PNG 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?
PNG is lossless, so no quality is lost relative to the source. It cannot recover detail that a lossy source already discarded.
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.