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
在处理大型设计文件时，Photoshop的PSD格式有时会遇到容量上限。当您的创意项目，比如高分辨率的数字绘画、精细的广告海报或是复杂的UI设计稿，文件体积突破2GB大关时，就需要请出它的“大哥”——PSB格式了。PSB，即大型文档格式，专为超大尺寸和多图层文件而生，它能轻松承载高达30万像素的边长，让您的创作不再受限于文件大小。从PSD到PSB的转换，不仅仅是格式的切换，更是为您的专业设计工作流解锁了更大的自由度与可能性。无论是应对客户的苛刻需求，还是在团队协作中保持文件完整性，PSB都能提供稳健的支持。
- 微信公众号巨幅长图设计
- 手游高精度场景原画
- 跨境电商产品精修图
在中国大陆及周边地区，随着移动互联网内容消费和游戏产业的快速发展，对超高清大尺寸图像的需求日益增长，PSB格式在这些专业领域的使用频率也随之提升。
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.