Convert RAW to FITS

RAW to FITS with professional color control. reaConverter batch converts RAW files with options for color balance and output quality.

Online converters too slow for your RAW files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure. RAW files convert with full color and quality control — no degradation.

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RAW to FITS
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RAWFITS

How to Convert Multiple RAW Images to FITS?

1. Download and Install reaConverter

Install reaConverter for fast RAW conversion. Quick setup, then you're ready to process entire photo shoots. reaConverter also includes editing tools: resize, crop, rotate, and more.

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Install reaConverter

2. Load your RAW files

Open reaConverter and import your .raw files. No file limits, no slowdowns. Add as many as you need.

You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

Load your RAW files into reaConverter

3. Select FITS as output format

Pick FITS as the output format. Set the destination folder and optionally configure resolution, quality, or file naming.

Select FITS as output format

4. Start RAW to FITS conversion

Click the Convert button to start. reaConverter will process all your files with the settings you selected.

Start Conversion

When finished, your new .fits files will be waiting in the destination folder.

RAW to FITS Converter

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

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Do more with your images

Converting RAW images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

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Image editing

User Reviews

Average User Rating:
Last updated on January 17, 2026
"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.
Laura N.
Astrophysics Research Assistant
"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
Joseph Wilson
Satisfied Customer
"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
Rebecca Turner
Marketing Agency CEO
"I was drowning in mismatched file formats until I found reaConverter. The one-click conversion and editing tools simplified everything, and the pricing is reasonable for small businesses. Now I spend less time troubleshooting and more time growing my brand!"
Emily K.
Emily K.
E-commerce Entrepreneur
"This program is incredibly simple and user-friendly, even beginners can use it with ease. It supports batch processing, works offline, and runs smoothly on my aging Acer Aspire laptop. Best of all, the output quality is outstanding!"
Kevin Harris
Kevin Harris
Happy User
"Finally an app that actually opens my weird files! Saves me from format frustration daily."
Kyle Brooks
Kyle Brooks
Happy User

RAW to FITS Conversion: FAQ

What are RAW files?

Also known as "digital negatives", RAW photos are uncompressed images that include all the details captured by the camera's sensor. They need to be post-processed using an advanced image editing software. Shooting in RAW mode allows the photographer to have more control over how the image will eventually look, compared to the case of other compressed formats, such as JPG or PNG. The downside of using RAWs, however, is their enormous size, which makes them difficult to store and transfer.

What are FITS files?

The FITS (Flexible Image Transport System) format is a standard format used particularly for storing, transferring and processing scientific images from fields such as astronomy. FITS was first launched as an open standard in the early 1980s and has gone through several subsequent upgrades. FITS files contain not just images, but also data related to photometry and spatial calibration, and information about the origin of the image. Similar formats include FIT and FTS.

Can reaConverter convert RAW to FITS?

Yes! reaConverter instantly converts .raw 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.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert RAW to FITS online?

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

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

The best way to change RAWs 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 RAW to FITS.

How can I automate RAW 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 RAW 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 raw to fits converter for batch processing.

What else can I do with reaConverter?

Convert PDFWatermark photosConvert vector imagesConvert picture color spaceConvert CAD formats

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