XWD Won't Open? Convert to FITS Instantly
Fast, instant XWD to FITS conversion. No signup required. Just drop your .xwd file and get .fits in seconds.
Batch Settings
您是否在处理X Window Dump (XWD) 格式的图像文件时，遇到过兼容性难题？尤其是在需要进行专业天文数据分析、图像处理，或是与特定软件对接时，XWD格式可能就显得有些力不从心了。别担心，我们理解您的需求。将XWD文件转换成FITS（Flexible Image Transport System）格式，不仅能让您的图像数据拥有更广阔的应用场景，还能确保数据完整性和元信息的高度保留。FITS作为天文学界公认的标准格式，其强大的数据承载能力和良好的互操作性，将为您的科研、教学或个人项目提供坚实支持。现在，就让我们帮您轻松完成这次格式的华丽转身，让您的数据在更专业的平台大放异彩。
- 天文图像数据分析
- 科研项目数据归档
- 专业图像处理软件导入
在华人地区，特别是学术科研机构，FITS格式在天文物理、遥感等领域有广泛应用，而XWD则更多见于早期Unix/Linux系统环境下的屏幕截图，两者转换需求相对小众但关键。
About XWD to FITS Conversion
Dealing with a XWD file that won't open on your device? You're not alone — XWD compatibility issues are one of the most common reasons people search for a file converter. XWD is a widely used file format.
The fix is simple: convert your XWD to FITS. FITS 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 XWD to FITS maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your XWD 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 FITS 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 XWD to FITS
- 1
Add your XWD file
Drag and drop your .xwd file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick FITS output
Select .fits 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 .fits file. For batch jobs, download all at once as a zip.
What Happens When You Convert XWD to FITS
Your XWD file is decoded and re-encoded as FITS.
Your XWD file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in FITS format
The converted file is ready for download
Format Comparison
XWD
.xwd file
| Extension | .xwd |
| MIME Type | image/x-xwindowdump |
| Category | Image |
FITS
.fits file
| Extension | .fits |
| MIME Type | image/fits |
| Category | Image |
Should You Convert XWD to FITS?
When to Convert
- ✓When you need a FITS file
Frequently Asked Questions
Why won't my XWD file open?
XWD files may not open if your device lacks the right codec or application. Converting to FITS — a more widely supported format — usually resolves this. FITS is a widely used file format.
Is it safe to convert XWD to FITS 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 XWD to FITS?
Converting XWD to FITS 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 XWD 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 XWD to FITS 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.