PSB Won't Open? Convert to BMP Instantly
Fast, instant PSB to BMP conversion. No signup required. Just drop your .psb file and get .bmp in seconds.
Batch Settings
Photoshopの大型ファイル形式であるPSBを、汎用性の高いBMP形式へ変換したいとお考えですか？特に、緻密なアートワークや高解像度の画像を取り扱う際、ファイルサイズの肥大化は避けられない問題です。しかし、ウェブサイトへの掲載や、特定のソフトウェアでの利用を考えると、より軽量で扱いやすい形式が求められることも少なくありません。この変換ツールは、お客様の大切な作品の品質を損なうことなく、スムーズにBMP形式へと最適化します。細部にわたる色彩情報や階調を維持しつつ、互換性の高い画像ファイルを手に入れることができるため、幅広いシーンで活用いただけます。複雑な設定は不要で、直感的な操作で変換が完了します。さあ、今すぐPSBファイルをBMPに変換し、その利便性を体験してください。
- 漫画・アニメのデジタル原稿共有
- ビジネス文書への画像挿入
- 伝統的な縦書きデザインの素材作成
日本では、特に印刷業界や一部のDTP環境において、BMP形式が特定のレガシーシステムとの互換性確保のために利用されることがあります。PSBからの変換は、そうした環境への対応に役立ちます。
About PSB to BMP Conversion
Dealing with a PSB file that won't open on your device? You're not alone — PSB compatibility issues are one of the most common reasons people search for a file converter. PSB is a widely used file format.
The fix is simple: convert your PSB to BMP. BMP is an uncompressed raster format that preserves every pixel but produces very large files. This conversion lets you convert between formats quickly, solving the problem in seconds rather than hours of troubleshooting.
Converting PSB to BMP maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your PSB file on secure servers in Germany — upload, convert, download. Your files are encrypted via TLS and automatically deleted within 24 hours. No account needed, no software to install, and it works on any device with a browser.
This conversion is ideal when you When you need a BMP file.
The conversion engine behind CocoConvert uses FFmpeg, Sharp, and qpdf — the same open-source libraries trusted by Netflix, YouTube, and enterprise platforms. Pro users can batch convert up to 100 files at once.
How to Convert PSB to BMP
- 1
Add your PSB file
Drag and drop your .psb file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick BMP output
Select .bmp as the target format. CocoConvert automatically applies the best quality settings for this conversion.
- 3
Start conversion
Hit the Convert button. The image engine processes your file server-side — no CPU drain on your device.
- 4
Save your file
Once done, download your .bmp file. For batch jobs, download all at once as a zip.
What Happens When You Convert PSB to BMP
Your PSB file is decoded and re-encoded as BMP.
Your PSB file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in BMP format
The converted file is ready for download
Format Comparison
PSB
.psb file
| Extension | .psb |
| MIME Type | image/vnd.adobe.photoshop |
| Category | Image |
BMP
.bmp file
| Extension | .bmp |
| MIME Type | image/bmp |
| Category | Image |
Should You Convert PSB to BMP?
When to Convert
- ✓When you need a BMP file
Frequently Asked Questions
Why won't my PSB file open?
PSB files may not open if your device lacks the right codec or application. Converting to BMP — a more widely supported format — usually resolves this. BMP is an uncompressed raster format that preserves every pixel but produces very large files.
Is it safe to convert PSB to BMP online?
Yes. CocoConvert encrypts your file via TLS, processes it on isolated servers in Germany, and permanently deletes it within 24 hours. Your files are never shared or analysed.
Will I lose quality converting PSB to BMP?
Converting PSB to BMP maintains high quality with CocoConvert's optimised encoder settings. CocoConvert uses high-quality encoder defaults to preserve as much fidelity as possible.
How large can my PSB file be?
Free users can convert files up to 250 MB each. Pro users get a 5 GB limit per file, and Business API users have custom limits.
Can I convert PSB to BMP on my phone?
Absolutely. CocoConvert works in any modern browser — iOS Safari, Android Chrome, and all desktop browsers. No app required.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.