WEBP vs BMP — Comparison & Free Converter
Fast, instant WEBP to BMP conversion. No signup required. Just drop your .webp file and get .bmp in seconds.
Batch Settings
Transparency will be lost
WEBP supports transparency, but BMP does not. Transparent areas will be filled with a solid color (typically white). If you need transparency, consider converting to PNG or WebP instead.
Animation frames will be lost
WEBP supports animation, but BMP does not. Only the first frame (or a representative frame) will be preserved. If you need animation, consider converting to WebP or GIF instead.
Some metadata may not survive
Your WEBP file may contain EXIF, XMP, ICC metadata. BMP has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
ウェブサイトやデジタルコンテンツで広く使われるWEBP形式は、その優れた圧縮率で知られていますが、ビジネス文書や印刷物、あるいは特定の画像編集ソフトウェアでの取り扱いには、BMP形式への変換が求められることがあります。特に、細やかな色表現やピクセル単位での正確さが重視される場面では、可逆圧縮であるBMPがその真価を発揮します。このページでは、WEBP画像を劣化なく、そして手軽にBMP形式へ変換する方法をご紹介します。複雑な設定は一切不要。どなたでも直感的に操作できるよう設計しました。大切な画像を、用途に合わせて最適な形式で活用できるよう、お手伝いいたします。
- 漫画・イラストの印刷用データ作成
- ビジネス資料での画像埋め込み
- レトロPCゲーム開発のアセット
BMPはファイルサイズが大きくなりがちですが、日本のDTP業界では、その非圧縮特性ゆえに、色情報の正確性を求める場面でいまだに根強い需要があります。特に縦書きの文字組版において、画像の品質維持は重要視されます。
About WEBP to BMP Conversion
WEBP or BMP — which format should you use? The answer depends on your needs. Here's a quick breakdown.
WebP is Google's modern image format offering both lossy and lossless compression at 25-35% smaller sizes than JPG/PNG. It has mostly universal platform support. BMP is an uncompressed raster format that preserves every pixel but produces very large files. It has universal platform support.
Full Name: WEBP uses WebP Image, while BMP uses Bitmap Image. Compression: WEBP uses Lossy & Lossless, while BMP uses None (uncompressed). Transparency: WEBP uses Yes, while BMP uses No.
So when should you convert WEBP to BMP? This conversion is ideal when you You need maximum device and software compatibility. This conversion helps you convert between formats quickly.
WEBP supports transparency, but BMP does not. Transparent areas will be filled with a solid color (typically white). If you need transparency, consider converting to PNG or WebP instead. Common misconception: ""My file's transparent background will carry over to BMP"" — in reality, bmp doesn't support transparency. transparent areas become solid (usually white). save as png or webp if you need transparency.
If you've decided BMP is the right choice, CocoConvert makes the conversion effortless. Upload your .webp file, pick BMP, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert WEBP to BMP
- 1
Choose your WEBP file
Upload your .webp file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to BMP
Select .bmp from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large image files.
- 4
Get your BMP file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert WEBP to BMP
Your WEBP image is decoded into raw pixel data, then re-encoded as BMP.
Your WEBP file is decoded — the compressed/stored pixel data is expanded into raw RGBA (with alpha channel) pixels
Transparency is resolved: transparent pixels are composited onto a white background
Pixels are re-encoded using no compression (raw pixel storage)
Metadata (EXIF, ICC profiles) is transferred where BMP supports it
The BMP file is saved and ready for download
WEBP vs BMP — Detailed Comparison
| Feature | .WEBP | .BMP |
|---|---|---|
| Full Name | WebP Image | Bitmap Image |
| Compression | Lossy & Lossless | None (uncompressed) |
| Transparency | Yes | No |
| Animation | Yes | No |
| Color Depth | 8 bits/channel (24-bit + alpha) | up to 32 bits/channel |
| HDR Support | No | No |
| Typical File Size | 30–35% smaller than JPEG at same quality | 10–50 MB per photo (uncompressed) |
| Platform Support | Very Wide | Universal |
| Browser Support | modern browsers | Limited |
| Year Created | 2010 | 1986 |
| Open Standard | Yes | No |
Should You Convert WEBP to BMP?
When to Convert
- ✓You need maximum device and software compatibility
When NOT to Convert
- ✗You need to preserve transparent areas — BMP doesn't support transparency
Consider alternatives:
Common Mistakes When Converting WEBP to BMP
"My file's transparent background will carry over to BMP"
BMP doesn't support transparency. Transparent areas become solid (usually white). Save as PNG or WebP if you need transparency.
"BMP will be smaller than my WEBP file"
BMP uses no compression, so the output file is often larger than a lossy WEBP. If you need a small file, BMP may not be the right choice.
"My animated WEBP will stay animated after conversion"
BMP does not support animation. Only a single frame will be saved. Use WebP or GIF to preserve animation.
Frequently Asked Questions
Should I use WEBP or BMP?
It depends on your goal. WEBP preserves full quality. BMP preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is BMP higher quality than WEBP?
Not necessarily. WEBP supports transparency, but BMP does not. Transparent areas will be filled with a solid color (typically white). If you need transparency, consider converting to PNG or WebP instead. Quality depends on the compression type and settings, not just the format name.
Can I convert WEBP to BMP on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for WEBP to BMP?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for WEBP to BMP?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.