Images conversion
Convert BMP to WebP
Updated Jul 2026
BMP is an old, uncompressed image format built into Windows, and WebP is a modern format made for the web that produces much smaller files. To convert BMP to WebP, open the file in a converter and export it. Doing this on your own computer keeps the image off other people's servers the whole time.
- Extension
- .bmp
- Type
- Images
- Typically
- Legacy Windows images
- Transparency
- None
- Extension
- .webp
- Type
- Images
- Typically
- Modern web images
- Compression
- Lossy
- Transparency
- Supported
Convert BMP to WebP on your own computer. Nothing uploads.
How to convert BMP to WebP
- Open Morphjet and drag in the BMP file, or a whole folder of them, at once.
- Choose WebP as the output format.
- Convert. The WebP files are written next to your originals, and nothing leaves your machine.
BMP vs WebP: what actually changes
| BMP | WebP | |
|---|---|---|
| File size | Very large, mostly uncompressed | Much smaller, often a fraction of the size |
| Quality | Lossless, exact pixel data | Lossy by default, with a small trade-off for the smaller size |
| Transparency | Not really supported in practice | Yes |
| Compatibility | Opens in nearly any app, especially on Windows | Supported by modern browsers and apps, but some older software can't open it |
| Typical use | Legacy Windows screenshots, scans, and simple graphics | Web images, app assets, sharing |
When to convert, and when not to
Convert BMP to WebP when you want to shrink an old, oversized bitmap image so it's practical to post on a website, send in an email, or store without wasting space.
Keep the BMP if some older Windows program or workflow specifically expects that format, since WebP isn't guaranteed to open in software that hasn't been updated in years.
Why not just use an online converter?
BMP files tend to pile up from old scans, screenshots, and legacy tools, and people usually convert them to WebP so they can finally shrink and share them. Run that through a web-based converter and the image sits on a stranger's server while it's processed. Doing the conversion on your own computer means the image never leaves it, and you don't need to trust anyone else with it.
Questions
Does converting BMP to WebP lose quality?
A little. WebP uses lossy compression to get its small file size, similar to JPG. At normal quality settings the difference is hard to see, but it's no longer an exact match to the original BMP pixels.
Will the WebP file open everywhere the BMP did?
Not quite. WebP is well supported by modern browsers, phones, and apps, but some older or specialized software still expects BMP and may not recognize WebP at all. Worth checking if you're feeding it into an older program.
Does converting BMP to WebP keep the file's metadata?
There isn't much to keep. BMP stores almost no metadata beyond basic dimensions and color info, so the WebP file ends up just as bare, which is normal for this pair of formats.
Can I convert BMP to WebP without uploading it anywhere?
Yes. Morphjet converts the file locally on your computer, so it never has to travel over the internet, and you can do it with your wifi off.
Morphjet converts BMP, WebP, and 1,800+ other formats, all on your machine. Launching this July.