bmp to webp converter
Shrink your BMP bitmap by up to 95% — free, no upload, no sign-up — works on Android, iPhone and desktop — nothing leaves your device
💡 BMP files are huge — uncompressed raw pixels. WebP compresses them dramatically with no visible quality loss
Tap to choose a BMP file
or drag and drop — max 20 MB
WebP quality
85
Smallest file← 85 recommended →Best quality
Converting…
WebP — base64 data URI (copy & use)
How to use this tool
1
Select your BMP file — tap the drop zone to browse your files. BMP files are often found on Windows computers and older cameras.
2
Set quality — 85 gives excellent results for BMP content. Since BMP is lossless the WebP at Q85 will look identical while being up to 95% smaller.
3
Tap convert — see the dramatic file size reduction instantly. A 5MB BMP can become a 200KB WebP with no visible quality difference.
4
Download or copy — save the .webp file or copy the base64 data URI to use in your website, app or code.
All conversion happens locally in your browser using the Canvas API. No file is ever uploaded to any server. Your images stay completely private.
BMP vs WebP
| Compression | BMP: none · WebP: up to 95% |
| File size | BMP huge → WebP tiny |
| Quality | Both lossless at Q85+ |
| Transparency | Both support |
| Web use | BMP: ❌ · WebP: ✅ ideal |
| Browser support | WebP 97%+ global |
Why BMP to WebP?
BMP stores every pixel as raw data with no compression at all. A single BMP photo can be 5–20MB. Converting to WebP at quality 85 produces a file that looks identical but is 80–95% smaller — making it shareable, uploadable and web-ready.
Where do BMP files come from?
BMP files are common on Windows computers — Paint saves as BMP by default. Older scanners, cameras and industrial equipment also produce BMP output. If you've received a BMP file and need to use it on a website or share it, converting to WebP is the fastest way to make it practical.
FAQ
How much smaller will the WebP be?
Typically 80–95% smaller. A 5MB BMP often becomes 100–300KB as WebP with no visible quality difference.
Works on Android and iPhone?
Yes — Chrome on Android and Safari on iPhone. No app needed on either.
Is my file uploaded anywhere?
No — everything runs in your browser. Nothing is sent to any server.
Will the WebP look different from the BMP?
At quality 85 and above the difference is invisible to the eye. BMP is lossless so the source has perfect quality to work from.