FITS Won't Open? Convert to PGM Instantly
Fast, instant FITS to PGM conversion. No signup required. Just drop your .fits file and get .pgm in seconds.
Batch Settings
天文学や科学分野で広く用いられる高精細なFITS形式の画像を、一般的な画像ビューアや編集ソフトウェアで扱いやすいPGM形式へ変換されたいとお考えでしょうか。特に、貴重な観測データや研究成果を、より多くの人々と共有したり、手軽に加工したりする際に、この変換は非常に有効です。当社の変換ツールは、複雑な設定を必要とせず、FITSファイルの持つ詳細な階調情報を損なうことなくPGMへと最適に変換します。一枚の画像に込められた知見を、次の表現へとスムーズに橋渡しするお手伝いをいたします。
- 学会発表資料の作成
- 個人ブログでの研究紹介
- 教育コンテンツへの活用
FITSからPGMへの変換は、特に科学分野でのデータ共有において、ファイルサイズの最適化と互換性の確保に貢献します。日本では、研究機関や教育現場でこの変換が頻繁に行われています。
About FITS to PGM Conversion
Dealing with a FITS file that won't open on your device? You're not alone — FITS compatibility issues are one of the most common reasons people search for a file converter. FITS is a widely used file format.
The fix is simple: convert your FITS to PGM. PGM 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 FITS to PGM maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your FITS 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 PGM 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 FITS to PGM
- 1
Add your FITS file
Drag and drop your .fits file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick PGM output
Select .pgm 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 .pgm file. For batch jobs, download all at once as a zip.
What Happens When You Convert FITS to PGM
Your FITS file is decoded and re-encoded as PGM.
Your FITS file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in PGM format
The converted file is ready for download
Format Comparison
FITS
.fits file
| Extension | .fits |
| MIME Type | image/fits |
| Category | Image |
PGM
.pgm file
| Extension | .pgm |
| MIME Type | image/x-portable-graymap |
| Category | Image |
Should You Convert FITS to PGM?
When to Convert
- ✓When you need a PGM file
Frequently Asked Questions
Why won't my FITS file open?
FITS files may not open if your device lacks the right codec or application. Converting to PGM — a more widely supported format — usually resolves this. PGM is a widely used file format.
Is it safe to convert FITS to PGM 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 FITS to PGM?
Converting FITS to PGM 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 FITS 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 FITS to PGM 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.