Convert BMP to WebP

Convert BMP files to WebP in your browser. WebP files are typically smaller than BMP. Free, no upload, no signup.

Output format

WebP

82%

01 — Overview

Why convert BMP to WebP

WebP files are typically much smaller than BMP at equivalent quality — usually the main reason to make this conversion. Smaller files mean faster page loads, smaller email attachments, and less storage.

02 — Comparison

BMP vs WebP

AttributeBMPWebP
Compression—Lossy or lossless
TransparencyNoYes
AnimationNoYes
Typical file sizeVery largeMedium
Browser supportMajor browsers will render BMP, but it's never the right choice for the web.Supported by every evergreen browser since 2020 (Chrome, Firefox, Safari 14+, Edge). Older systems and some editing tools still struggle.

03 — How to

Three steps

  1. 01

    Drop your BMP files

    Drag one or more BMP files onto the dropzone above, or click to browse. Files stay on your device — nothing uploads.

  2. 02

    Convert in your browser

    convert.now decodes each BMP and re-encodes it as WebP via WebAssembly. The conversion runs in a Web Worker so the page stays responsive.

  3. 03

    Download the result

    Download a single WebP file or, for batch conversions, a zip of all converted files. Filenames preserve the originals.

04 — Pillars

Why convert.now

  • Private

    Files stay in your browser. No upload step. Nothing for anyone to see.

  • Fast

    No queue, no upload wait. Conversion starts the moment you drop a file.

  • Free

    No ads. No file-count limit. No sign-up wall. Just the converter.

05 — FAQ

Frequently asked

No. The conversion from BMP to WebP runs entirely in your browser using WebAssembly. Files never leave your device. Open DevTools' Network tab if you'd like to verify — there are no network requests with file contents.

06 — More

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