PNG Won't Open? Convert to FITS Instantly
Fast, instant PNG to FITS conversion. No signup required. Just drop your .png file and get .fits in seconds.
Batch Settings
La conversion d'images, notamment du format PNG vers le FITS, répond à des besoins spécifiques dans de nombreux domaines. Le PNG, omniprésent pour sa compression sans perte et son support de la transparence, est idéal pour le web et l'infographie. Le format FITS, en revanche, est la norme incontournable en astronomie et astrophysique. Il permet de stocker des données multidimensionnelles, des métadonnées complexes et des informations d'étalonnage essentielles à l'analyse scientifique. Passer de l'un à l'autre n'est donc pas une simple transposition visuelle, mais une réorientation des données d'une finalité graphique vers une exploitation scientifique et archivistique, garantissant la pérennité et l'intégrité des informations brutes ou traitées. Notre outil simplifie ce processus, le rendant accessible aux chercheurs, aux institutions et aux passionnés.
- Archivage de clichés astronomiques universitaires
- Traitement d'images satellitaires pour l'observation terrestre
- Partage de données brutes entre observatoires internationaux
En France, en Belgique et au Québec, de nombreuses institutions académiques et observatoires utilisent FITS pour leurs recherches. La conversion depuis des formats plus courants comme le PNG est souvent nécessaire pour intégrer des visualisations ou des données issues de capteurs non-spécifiquement astronomiques dans leurs workflows d'analyse.
About PNG to FITS Conversion
Dealing with a PNG file that won't open on your device? You're not alone — PNG compatibility issues are one of the most common reasons people search for a file converter. PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots.
The fix is simple: convert your PNG 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 PNG to FITS maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your PNG 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 PNG to FITS
- 1
Add your PNG file
Drag and drop your .png 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 PNG to FITS
Your PNG file is decoded and re-encoded as FITS.
Your PNG 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
PNG
.png file
| Extension | .png |
| MIME Type | image/png |
| Category | Image |
FITS
.fits file
| Extension | .fits |
| MIME Type | image/fits |
| Category | Image |
Should You Convert PNG to FITS?
When to Convert
- ✓When you need a FITS file
Frequently Asked Questions
Why won't my PNG file open?
PNG 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 PNG 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 PNG to FITS?
Converting PNG 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 PNG 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 PNG 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.