PSD Won't Open? Convert to PSB Instantly
Fast, instant PSD to PSB conversion. No signup required. Just drop your .psd file and get .psb in seconds.
Batch Settings
PSDとPSB、この二つのファイル形式は、デジタルデザインの世界で非常に身近な存在です。特に、緻密な表現が求められるイラストや、多数のレイヤーを駆使したビジネス資料の作成において、その重要性は計り知れません。PSDは標準的なPhotoshopファイルとして広く利用されていますが、時にはその容量やレイヤー数の限界に直面することもあります。例えば、高解像度のマンガ原稿や、膨大な画像データを扱う大規模なプロジェクトでは、PSDの制約が作業効率を妨げるケースも少なくありません。そこで登場するのが、より大きなデータを扱えるPSB形式です。この変換ツールは、そうした課題を解決し、皆様のクリエイティブな作業を円滑に進めるための一助となることを目指しています。
- 高解像度マンガ原稿の保存
- 大規模ビジネス資料のレイヤー管理
- 縦書きデザインの複雑な調整
日本では、特に商業デザインや出版分野で、複数のフォントや複雑な文字組版を多用するため、レイヤー数の多いPSDファイルが頻繁に扱われます。PSBへの変換は、これらのファイルをより安全に、かつ効率的に管理する上で非常に有効です。
About PSD to PSB Conversion
Dealing with a PSD file that won't open on your device? You're not alone — PSD compatibility issues are one of the most common reasons people search for a file converter. PSD is Adobe Photoshop's native format, retaining layers, masks, and editing history.
The fix is simple: convert your PSD to PSB. PSB is a widely used file format. This conversion lets you convert between formats quickly, solving the problem in seconds rather than hours of troubleshooting.
Converting PSD to PSB maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your PSD 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 PSB 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 PSD to PSB
- 1
Add your PSD file
Drag and drop your .psd file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick PSB output
Select .psb 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 .psb file. For batch jobs, download all at once as a zip.
What Happens When You Convert PSD to PSB
Your PSD file is decoded and re-encoded as PSB.
Your PSD file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in PSB format
The converted file is ready for download
Format Comparison
PSD
.psd file
| Extension | .psd |
| MIME Type | image/vnd.adobe.photoshop |
| Category | Image |
PSB
.psb file
| Extension | .psb |
| MIME Type | image/vnd.adobe.photoshop |
| Category | Image |
Should You Convert PSD to PSB?
When to Convert
- ✓When you need a PSB file
Frequently Asked Questions
Why won't my PSD file open?
PSD files may not open if your device lacks the right codec or application. Converting to PSB — a more widely supported format — usually resolves this. PSB is a widely used file format.
Is it safe to convert PSD to PSB 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 PSD to PSB?
Converting PSD to PSB 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 PSD 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 PSD to PSB 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.