ND2 → FITS · Windows

Convert ND2 to FITS

Convert ND2 files to FITS on the machine they already sit on. Nothing is uploaded, and there is no limit on file size.

Online converters too slow for your ND2 files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure. Useful whenever data has to reach people who do not have the vendor viewer.

DownloadND2 to FITS ConverterConvert
ND2 to FITS
Online
ND2FITS
4.8

Converting files since 2001

Runs offline — nothing uploaded

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How to Convert Multiple ND2 Files to FITS?

1. Download and Install reaConverter

Install reaConverter and work with ND2 files directly. Setup takes under a minute and needs nothing else on the machine.

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Install reaConverter

2. Load your ND2 files

Open reaConverter and import your .nd2 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 ND2 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 ND2 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.

Step by step

How It Works

reaConverter offers the fastest, simplest solution for converting your ND2 files into FITS in seconds - all files processed on your PC for maximum privacy and speed.

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Technical note

What changes when you convert ND2 to FITS

ND2 is an N-dimensional acquisition rather than a picture. One file can hold several fluorescence channels, a stack of focal planes, a time series and a mosaic of stitched tiles, each recorded separately by the camera. FITS is a flat image format, so those dimensions have to be resolved into ordinary pictures, and which result is the right one depends on the work: a merged colour composite suits a figure or a presentation, while separate greyscale planes are what quantification needs.

Deep Customization

Do more with your files

Converting ND2 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
Image editing

User reviews

What people say after the first batch

Average User Rating:4.8
Last updated on August 20, 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
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.
Laura N.
Astrophysics Research Assistant
This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!
Robert Williams
Robert Williams
Happy User
Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!
Henry R.
Henry R.
Happy User
For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables.
Paul Baker
Paul Baker
Happy User
We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works.
David R.
David R.
IT Solutions Architect

FAQ

ND2 to FITS Conversion

What are ND2 files?

ND2 is the native image format of Nikon NIS-Elements microscopy software. The name refers to N-dimensional data, since a single file can contain multiple channels, focal planes, time points and stage positions along with the acquisition metadata.

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 ND2 to FITS?

Yes! reaConverter instantly converts .nd2 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 ND2 to FITS online?

If you only need to convert a few ND2 files to FITS format, feel free to try our free online free online ND2 to FITS converter — perfect for small batches with no installation needed!

How can I turn ND2 files into FITS on my computer?

The best way to change ND2s 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 ND2 to FITS.

How can I automate ND2 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 ND2 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 nd2 to fits converter for batch processing.

What else can I do with reaConverter?

Change format settingsCopy metadata (EXIF, IPTC)Convert PDF filesWatermark pictureConvert vector files

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