Convert BMP to WebP

BMP to WebP: the quick version

BMP to WebP, done in your browser. Convert.diy converts your BMP files to WebP instantly — no uploads, no watermarks, no sign-up, and no limit on how many you convert. Because everything runs locally with WebAssembly, your files never touch a server.

BMP (Bitmap) is an uncompressed Windows format. Files are huge because pixels are stored raw with no compression. WebP is a modern Google format that keeps quality high while cutting file size 25–35% below JPG and PNG, with transparency support.

People usually convert BMP to WebP for fast-loading web images. Drop your files below, pick your quality, and download — it takes seconds.

How to convert BMP to WebP

Add files

Drop your BMP file(s) into the box above, or click to browse. Add as many as you like.

Convert

Pick WebP and adjust quality, then click Convert. It runs instantly on your device.

Download

Download each WebP, or all of them as a single zip.

Frequently asked questions

Is the BMP to WebP converter free?

Yes — it’s completely free with no limits, no watermarks, and no account required. Convert as many BMP files as you want.

Are my files uploaded to a server?

No. Conversion happens entirely inside your browser using WebAssembly, so your BMP files never leave your device. Nothing is uploaded, stored, or seen by anyone.

Can I convert multiple BMP files at once?

Yes. Add as many files as you like and convert them in one batch, then download them together as a zip.

Why convert to WebP?

WebP produces significantly smaller files than JPG or PNG at the same visual quality, which makes web pages load faster.

Does it work on my phone?

Yes. Convert.diy works in any modern browser on iPhone, Android, Windows, Mac and Linux — no app to install.