PSB Won't Open? Convert to CAL Instantly
Fast, instant PSB to CAL (CALS) conversion. No signup required. Just drop your .psb file and get .cal in seconds.
Batch Settings
在图像处理的世界里，文件格式转换是家常便饭。当您手握Adobe Photoshop的大尺寸设计稿（PSB），却需要它在特定应用或设备上顺畅展现，例如游戏开发中的纹理贴图，或是老牌专业软件的数据交换，CAL格式往往能提供意想不到的兼容性与效率。PSB以其强大的图层和高分辨率支持，是创作的基石；而CAL，尽管不像常见格式那样普及，却在某些特定场景下，以其独特的结构和高效的读取方式，成为不可或缺的一环。我们将一起探索如何将这些庞大的PSB文件，精准无损地转化为CAL格式，确保您的创意作品在不同平台间自由流转，满足从专业制作到日常分享的各种需求。告别兼容性烦恼，让文件转换变得简单高效，为您的数字工作流注入更多可能。
- 微信小程序素材适配
- 手游纹理资源优化
- 旧版工业软件兼容
在华语区，特别是游戏行业和部分传统制造业，CAL格式在特定历史遗留系统或内部工作流中仍有使用，其高效的二进制结构在早期资源加载中表现良好。将PSB转换为CAL，常见于跨平台资源迁移或老项目维护。
About PSB to CAL (CALS) 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 CAL. CAL 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 PSB to CAL 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 CAL 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 CAL (CALS)
- 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 CAL output
Select .cal 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 .cal file. For batch jobs, download all at once as a zip.
What Happens When You Convert PSB to CAL (CALS)
Your PSB file is decoded and re-encoded as CAL.
Your PSB file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in CAL format
The converted file is ready for download
Format Comparison
PSB
.psb file
| Extension | .psb |
| MIME Type | image/vnd.adobe.photoshop |
| Category | Image |
CAL (CALS)
.cal file
| Extension | .cal |
| MIME Type | image/x-cals |
| Category | Image |
Should You Convert PSB to CAL (CALS)?
When to Convert
- ✓When you need a CAL 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 CAL — a more widely supported format — usually resolves this. CAL is a widely used file format.
Is it safe to convert PSB to CAL 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 CAL?
Converting PSB to CAL 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 CAL 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.