FITS to PNG — Format Comparison & Online Converter
Fast, instant FITS to PNG conversion. No signup required. Just drop your .fits file and get .png in seconds.
Batch Settings
天文学の専門家や研究者の間で広く利用されているFITSファイル。その精緻なデータは、時に一般のプレゼンテーションやウェブサイト、あるいはSNSで共有する際に、そのままでは扱いにくいと感じることはありませんか？ 私たちのツールは、そのようなFITSファイルを、汎用性の高いPNG形式へと簡単に変換します。PNGは、その可逆圧縮と透過性サポートにより、画質を損なうことなく、さまざまな媒体で美しく表示できるのが特長です。複雑な設定は一切不要。アップロードしてボタンを押すだけで、あなたの貴重な天体画像データが、誰もが見やすい、そして使いやすい画像ファイルへと生まれ変わります。研究成果の発表、教育資料の作成、あるいは個人的な興味からくる画像共有まで、あらゆるシーンであなたのFITSデータを有効活用するためのお手伝いをいたします。
- 学会発表資料での利用
- ビジネスレポートへの挿入
- 個人のブログやSNSでの共有
日本では、FITSのような専門的な画像データを、縦書きの出版物や、フォントにこだわったデザインと組み合わせて使用する際、PNGの透明性や高画質は特に重宝されます。
About FITS to PNG Conversion
FITS and PNG (introduced 1996) are both image formats, but they differ in important ways. FITS is a widely used file format. PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots.
When you convert FITS to PNG, the goal is to convert between formats quickly. Converting FITS to PNG maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your FITS file is decoded and re-encoded as PNG. The conversion involves 4 steps: (1) your fits file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in png format, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you need a PNG file. For the opposite direction, CocoConvert also supports PNG to FITS conversion.
How to Convert FITS to PNG
- 1
Upload .fits file
Select your FITS file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .png
Set PNG as the output format. The converter uses optimal settings based on the FITS→PNG conversion profile.
- 3
Convert
The server-side engine decodes your FITS file and re-encodes it as PNG. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .png file. Multiple output files can be downloaded together.
What Happens When You Convert FITS to PNG
Your FITS file is decoded and re-encoded as PNG.
Your FITS file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in PNG format
The converted file is ready for download
Format Comparison
FITS
.fits file
| Extension | .fits |
| MIME Type | image/fits |
| Category | Image |
PNG
.png file
| Extension | .png |
| MIME Type | image/png |
| Category | Image |
Should You Convert FITS to PNG?
When to Convert
- ✓When you need a PNG file
Frequently Asked Questions
What is the difference between FITS and PNG?
FITS is a widely used file format. PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots.
Does FITS to PNG conversion affect quality?
Converting FITS to PNG maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, FITS or PNG?
FITS is a common image format. PNG uses lossless compression. The better choice depends on whether you prioritize file size or quality.
How long does FITS to PNG conversion take?
Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is FITS or PNG better for long-term storage?
PNG is better for archival since it preserves all original data.
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