BMP to WebP

The biggest single size reduction available here: uncompressed pixels to a modern lossy codec, routinely a 95 percent drop.

Runs in your browser // nothing is uploaded

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What survives the conversion

Derived from what each format is able to store, not from what the conversion promises.

Kept

BMP carries nothing that WebP can also hold.
Transparency, which BMP could not store
Animation, which BMP could not store

Lost

Original pixel data (lossless)

Settings used

WebP at quality 0.9, encoded straight from the decoded BMP pixels with no intermediate step.

When not to convert

Not for an archival master. Convert to PNG if the file must stay lossless.

About these formats

Image

What is a WebP file?

WebP is an image format released by Google in 2010 that supports both lossy and lossless compression, plus transparency and animation in a single format. It typically produces noticeably smaller files than JPG at comparable visual quality, and is supported by every current major browser.

Read the format guide

Common questions

Does converting BMP to WebP lose anything?

Yes. Original pixel data (lossless) cannot be carried into WebP and is dropped. The biggest single size reduction available here: uncompressed pixels to a modern lossy codec, routinely a 95 percent drop.

Are my files uploaded when I convert BMP to WebP?

No. The conversion runs in your browser tab, so the file is never transmitted and the page works offline once loaded.

What settings does Filoven use for BMP to WebP?

WebP at quality 0.9, encoded straight from the decoded BMP pixels with no intermediate step.

When should I not convert BMP to WebP?

Not for an archival master. Convert to PNG if the file must stay lossless.