View .fits Files Without Installing Software
View FITS File Online — No Software
No signup required. Works in your browser.
📁 Drag & drop your file here
or click to browse • Max 100MB
✅ Free • ⚡ Instant • 🔒 Secure • 💻 No install
View .fits Without Installing Software
Don't have NASA/IAU installed? No problem. OpenAnyFile renders .fits files directly in your browser using advanced format detection.
Supports .fits files from any source — email attachments, downloads, cloud storage, or USB drives.
What You Can Do
- Preview full file contents
- Check file metadata and structure
- AI-powered file analysis
- Convert to PNG, JPG, CSV, TIFF
Frequently Asked Questions
Can I open FITS files online without software?
Yes. OpenAnyFile opens FITS files directly in your browser — no downloads or installations needed.
Is it free to open FITS files?
Yes, opening and viewing FITS files is completely free. Conversion options are also available.
Is it safe to upload my FITS file?
Absolutely. Files are processed securely and auto-deleted. All transfers use HTTPS encryption.