Convert ACE to FITS

Convert ACE to FITS without uploading files anywhere. reaConverter works entirely on your PC — fast, private, and handles thousands of files at once.

ACE to FITS conversion is faster with the right tool. reaConverter handles everything from a few files to thousands in one batch. Processes files consistently every time, with full control over quality and output settings.

1. Download and Install reaConverter

First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed.

Install reaConverter

2. Load your ACE files

Launch reaConverter and drop in your ACE files. The software queues everything for batch processing with consistent settings.

Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

3. Select FITS as output format

Pick FITS as output format and choose the destination folder where you want to save new .fits files.

4. Start ACE to FITS conversion

Then simply press the Convert button and your conversion will begin in no time!

Once the conversion is complete, you can find your FITS files in the destination folder you selected.

ACE to FITS Converter

reaConverter offers the fastest, simplest solution for converting your ACE files into FITS in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting ACE files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features

User Reviews

Average User Rating:
Last updated on January 16, 2026

"Essential for our astroimaging pipeline! reaConverter perfectly handles FITS files from our research telescope, preserving all WCS coordinates and photometric data during batch conversion to TIFF. Now we process 100+ deep-sky exposures nightly without losing critical metadata for our exoplanet studies!"

Joseph Wilson

Satisfied Customer

"reaConverter makes FITS conversion incredibly easy. We batch convert astronomical images to standard formats for presentations and analysis, all automated through the command-line. It’s fast, reliable, and handles large datasets without issues."

Laura N.

Astrophysics Research Assistant

"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."

Roger Cook

Happy User

"For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results."

Jamal Bailey

Satisfied Customer

"Our volunteer team uses reaConverter to prepare images for fundraising campaigns. The learning curve was minimal, and the results are professional-grade. The customer support team even helped us customize a workflow — fantastic service!"

Jason P. Bailey

Non-Profit Coordinator

"Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines."

Rebecca Turner

Marketing Agency CEO

ACE to FITS Conversion: FAQ

Can reaConverter convert ACE to FITS?

Yes! reaConverter instantly converts .ace to .fits with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert ACE to FITS online?

If you only need to convert a few ACE files to FITS format, feel free to try our free online free online ACE to FITS converter — perfect for small batches with no installation needed!

How can I turn ACE files into FITS on my computer?

The best way to change ACEs to FITSs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from ACE to FITS.

How can I automate ACE to FITS files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert ACE files to FITS using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line ace to fits converter for batch processing.

What else can I do with reaConverter?

Set manual file date Convert PDF files Add text on pictures Change format settings Change DPI