Convert BMP to WEBP Online

1) Upload BMP file to convert

Drop files here, or Click to select

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2) Set converting BMP to WEBP options

3) Get converted file

DOWNLOAD CONVERTED FILE

How to convert BMP to WEBP?

💾 Upload Your File: Go to the site, click on «Upload File,» and select your BMP file.

✍️ Set Conversion Options: Choose WEBP as the output format and adjust any additional options if needed.

Convert and Download: Click 👉«Download Converted File»👈 to get your WEBP file.

Cloud Based

There is no need to install any software to convert BMP to WEBP with CoolUtils. Simply access the internet, and you can easily convert your file online with our service.

Secure

Our hardware operates in top-tier, highly secure data centers equipped with advanced electronic surveillance and multi-factor access control systems.

Ease of Use

Converting BMP Windows bitmap to WEBP online has never been so simple. Drop your .bmp file and the converter encodes the image as WebP — ~30% smaller than equivalent PNG, native in every modern browser, and supports transparency.

Privacy

We understand the importance of privacy, which is why we've developed a comprehensive privacy policy detailing how we handle your files and personal information. You can read the policy here.

BMP File

File extension	.BMP, .RLE, .DIB
Category	Image File
Description	May be the simplest file format, BMP was developed jointly by Microsoft and IBM. That is why it is widespread on Windows platform. This extension is characterized a raster graphic format which is recognized by many programs today. In comparison with other bitmap formats, JPEG and GIF, BMP keeps color data for each pixel in the image and doesn't compress images to decrease a file size. That is what makes it perfect file format for printable images.
Associated programs	Adobe Photoshop MS Paint Microsoft Photo Editor Paintbrush
Developed by	Microsoft
MIME type	image/bmp Image/x-ms-bmp
Useful links	More detailed information on BMP files
Conversion type	BMP to WEBP

WEBP File

File extension	.WEBP
Category	Image File
Description	WebP is a new lossy image file format, whose mission is to overthrow JPEG, which has long been the ruler of the web image world. Although it is not expected to outdo JEG in image quality right away, it seems to be outdoing it in user-friendliness. With Webp, you get a same-quality image almost 50% smaller than its JPEG counterpart. Webp uses VP8 ñ an open-source codec, and a RIFF-based container, which creates a good potential for further development. The format was created by Google.
Associated programs	Adobe Photoshop Google Chrome Picasa
Developed by	Google
MIME type	image/webp
Useful links	More detailed information on WEBP files

2026-01-27

We had hundreds of BMP screenshots in our documentation portal. Converting them to WebP cut page load times dramatically without any visible quality loss.

Lena Fischer

2026-03-14

Needed to move old Windows bitmap assets to WebP for a modern web build. The converter handled the whole batch in one go with no issues.

James Okafor

2026-04-29

Converted BMP product images to WebP for our e-commerce site. File sizes dropped by over 70% and the images still look sharp on all devices.

Yuki Sato

Rating BMP to WEBP

4.6 (380 votes)Rate It

BMP to WebP Converter — Frequently Asked Questions ▼

What is a BMP file?

BMP is the Windows Bitmap format Microsoft shipped with Windows 3.0 in 1990. It stores raw uncompressed pixel data, which makes BMP files several megabytes even at modest resolution.

Why convert BMP to WebP?

WebP produces files 80-95% smaller than BMP at equivalent visual quality. The result loads faster, costs less bandwidth, and ranks better in Google's Core Web Vitals.

Will WebP lose quality compared with my BMP?

Lossless WebP keeps every pixel intact and still beats BMP on size. The default lossy WebP at quality 80 is visually identical for photos and far smaller. The online converter picks sensible defaults automatically.

Does WebP support transparency like 32-bit BMP?

Yes. WebP carries a full 8-bit alpha channel, so transparent regions in a 32-bit BMP survive conversion cleanly.

Can I batch-convert hundreds of BMP files?

Online conversion is one file at a time. For folders, use Total Image Converter on your desktop: TotalImageConverter.exe C:\bmp_in C:\webp_out /ConvertTo webp processes everything in a single run.

What is the maximum file size?

The online converter accepts BMP files up to 50 MB. That covers screenshots and most scanned images. For larger BMPs from satellite imagery or oversized scans, use the desktop version.

Are my uploaded files kept private?

Uploaded files are deleted automatically once you download the WebP. Nothing is stored, indexed, or shared. For sensitive material, convert locally with Total Image Converter.

Convert BMP to WEBP — Shrink Windows Bitmaps for the Web

BMP is the uncompressed Windows bitmap format from 1990 — fine for legacy desktops, ruinous for web bandwidth. Converting BMP to WebP cuts file size by 80–95% with no visible quality loss, and every modern browser displays the result natively. Drop your .bmp file above.

What Is BMP?

BMP (Windows Bitmap) is the raster format Microsoft introduced with Windows 3.0 in 1990. BMP stores pixel data uncompressed, row by row, which is why a 1920×1080 BMP weighs 6 MB while the same image as JPG or WebP weighs under 200 KB. BMP supports 1, 4, 8, 16, 24, and 32-bit colour depth and is universal on Windows but heavy everywhere else.

What Is WebP?

WebP is the image format Google released in 2010 to replace JPG and PNG on the web. WebP offers both lossy and lossless compression, alpha-channel transparency, and animation, and produces files roughly 25–35% smaller than JPG at the same visual quality. Every current browser — Chrome, Edge, Firefox, Safari, Opera — renders WebP natively.

BMP vs WebP — Format Comparison

Property	BMP	WebP
Year	1990	2010
Developer	Microsoft	Google
Compression	None (raw pixels)	Lossy or lossless
File size (1920×1080)	~6 MB	~150-300 KB
Transparency	32-bit BMP only	Alpha channel
Animation	No	Yes
Browser support	Limited	Universal (modern)

When Do You Need BMP to WebP Conversion?

Cut bandwidth costs on a website that still serves legacy BMP graphics
Speed up page loads measured by Lighthouse or Core Web Vitals
Reduce storage for large BMP archives from old scanners or screen-capture tools
Replace BMP product photos in an online store with lightweight WebP versions
Prepare BMP assets exported from legacy CAD or GIS software for modern web display
Email or share BMP screenshots without hitting attachment size limits

Command-Line Conversion

Batch-convert an entire folder without opening the interface:

TotalImageConverter.exe C:\src_files C:\tgt_out /ConvertTo webp /ProcessRecursively

Add /ProcessRecursively to include subfolders. Save the command in a .bat file for scheduled or automated runs.

Online vs Desktop

Feature	Online (this page)	Total Image Converter (desktop)
File size limit	50 MB	Unlimited
Batch conversion	One file at a time	Entire folders at once
Software install	None required	Windows 7–11
Output options	Standard	Full control
Command-line	No	Yes
Privacy	File uploaded to server	Stays on your computer
Price	Free	From $29.90