BMP to WebP
Turn BMP files into small, web-ready WebP images.
Drop BMP files here or click to browse
Processing happens on your device. Nothing is uploaded.
100% Private
Files are processed locally in your browser. They never touch our servers.
Smart Defaults
Sensible settings are applied automatically. Fine tune them only if you want to.
Batch Processing
Drop multiple images at once and download everything together as a ZIP.
How to use BMP to WebP
- Drop your images onto the page, or click to pick them from your device
- Use the default settings, or adjust the options for your file type and target result
- Download the finished images one by one, or save the full batch as a ZIP
What BMP to WebP is for
Use this tool when a BMP is headed for a website and size matters. It re-encodes the bitmap to WebP in your browser, giving a tiny, web-ready file that still keeps any transparency.
- Turn a large BMP into a tiny, web-ready WebP image.
- Shrink bitmaps hard for fast-loading web pages.
- Keep any transparency while cutting file size sharply.
- Convert a batch of BMP files to WebP together.
Best practices for better results
Image optimization works best when you choose the right balance between file size, visual quality, dimensions, format compatibility and privacy. These tips help you get a cleaner result.
- WebP is ideal for the web: tiny files with optional transparency.
- Quality 80 to 90 looks identical while shrinking the file sharply.
- For maximum compatibility with old software, use PNG or JPG instead.
- Keep the BMP original if you may need the raw bitmap again.
What happens to your images?
When you choose a file, your browser reads it locally and creates the processed version on your own device. CompressImage.ca does not receive the original image or the finished file.
That local-first approach is useful for personal photos, client work, screenshots, documents, product images and other files you do not want to upload to a third-party server.
When to use another tool
The best tool depends on what you are trying to fix. Compression reduces file size, resizing changes dimensions, conversion changes format, cropping changes framing, and metadata removal cleans hidden information from the file.
| Goal | Best tool |
|---|---|
| Make a file smaller | Compress Image |
| Hit an exact file size | Compress Image to Size |
| Change image dimensions | Resize Image |
| Create WebP files for websites | Convert to WebP |
| Convert iPhone photos | HEIC to JPG |
| Remove hidden photo data | Remove EXIF |
Related image tools
These tools solve similar image optimization problems and work the same way: locally in your browser, with no required upload.
- JFIF to JPG: Rename JFIF photos to standard JPG files
- JPEG to JPG: Save JPEG files with the standard .jpg extension
- SVG to JPG: Rasterise SVG vector files into JPG images
- GIF to JPG: Save the first frame of a GIF as a JPG
BMP to WebP FAQ
Why convert BMP to WebP?
WebP gives the smallest web-ready files and is supported by every modern browser, so it is ideal when a BMP is headed for a website.
Does WebP keep transparency?
Yes. WebP supports an alpha channel, so any transparency in the source is preserved in the WebP.
What quality should I use?
Quality 80 to 90 keeps the image looking identical while cutting the file size sharply. Lower it further if loading speed matters most.
Is my image uploaded?
No. The BMP is decoded and re-encoded to WebP entirely in your browser, so your image never leaves your device.