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Open FITS online

100% Free fits file Viewer online tools. Free Online fits viewer

Drag & Drop FITS file or Browse


Drop file here. 150 MB maximum file size.



No sign-up required. Your files are deleted automatically after 24 hours.


Open FITS File

What did you think of your recent FITS Viewer/Editor experience?

 4.8 (889 Votes)

Our free fits viewer online tools does not required any registrations and installations on your system, 100% free and online flexible image transport system file (.fits) viewer tool. Open from any device with a modern browser like Chrome, Opera and Firefox.

Best & secure online fits viewer is custom developed tool by Filproinfo.com, all files processing perform on our own dedicated cloud servers under dynamic file system that automatically remove all processed files from our cloud servers after 1 to 24 hours.

Free Online FITS Tools & Apps

Access powerful and secure free online FITS tools to convert, view, edit, merge, split, and compare FITS files — all without installing any software. Our tools support the .FITS (Flexible Image Transport System File) file extension and run smoothly in any modern browser.

Select a tool below to explore features and manage your FITS files directly from your device with ease.

Related FITS File Extensions & Tools

FITS default file extension is .FITS and other similer related extensions and their tools are:

FAQ

  • ❓ How can I View FITS (flexible image transport system file)?

    First, you need to add a file for Viewer: drag & drop your FITS file or click inside the white area for choose a file. Then click the "View" button. It will now allow you to View your FITS file.

  • ⏱️ How long does it take to View FITS?

    This Viewer works fast. You can View FITS in a few seconds.

  • 🛡️ Is it safe to View FITS using free Viewer?

    Of course! The download link of FITS files will be available instantly after Viewing. We delete uploaded files after 24 hours and the download links will stop working after this time period. No one has access to your files. File Viewing (including flexible image transport system file .fits) is absolutely safe.

  • 💻 Can I View FITS on Mac OS, Android or Linux?

    Yes, you can use free Viewer app on any operating system that has a web browser. Our FITS Viewer works online and does not require any software installation.

  • 🌐 What browser should I use to View FITS?

    You can use any modern browser to View FITS, for example, Google Chrome, Firefox, Opera, Safari.
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This tool and page updated at: 12-Apr-2025




About FileProInfo: FileProInfo is a trusted platform dedicated to file formats and software programs. We provide accurate technical details, easy-to-use navigation, and advanced search capabilities to help users explore, manage, and convert file types efficiently.


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