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Free JPG to FITS Converter Online

Convert JPG files to FITS quickly and easily online. Upload files up to 2GB and download your converted files in just a few clicks.

Drag & drop your files

JPEG, PNG, PDF, and other formats, up to 2GB

Privacy Files stay private.

Privacy Automatically deleted after 24 hours.

Privacy 2GB upload limit.

4.8/5

Trusted for 1,794,705+ conversions

HOW IT WORKS

Convert JPG to FITS in three steps

Three steps, no account, nothing to install.

01

Upload JPG files

Drag and drop or upload JPG files you want to convert to FITS.

02

Convert to FITS

Select FITS as the output format and start the conversion.

03

Download

Download each FITS as it finishes, or grab everything as one zip. You can also share a link.

JPG

The JPG (or JPEG) image format is a widely used compressed file format for digital images. It supports 16 million colors and is ideal for photographs and graphics on the web. With its lossy compression, JPG balances quality and file size, making it perfect for web publishing and storage. Enhance your visual content with this versatile and efficient format, perfect for capturing high-quality images.

FITS

FITS is a digital file format designed for the storage and transmission of scientific data, particularly in astronomy. Optimized for large datasets, it efficiently handles multi-dimensional arrays and metadata, making it indispensable for image and data analysis in telescopes and space missions. Its extensibility ensures compatibility across various platforms and software, securing its place as a vital tool in scientific research.

USE CASES

Use Cases for JPG to FITS

Here are day to day use cases of JPG to FITS

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Convert astronomical photos from JPG to FITS for professional analysis

Amateur astronomers and researchers capture celestial objects in JPG format but need FITS files to perform photometric measurements, spectral analysis, and scientific processing with astronomy software like SAOImage DS9 or AstroImageJ.

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Prepare telescope observation images for research publications

Academic researchers converting JPG images from telescope sessions to FITS format enables proper data preservation with metadata intact, meeting journal submission requirements for astronomical research papers and maintaining scientific data integrity.

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Convert solar eclipse photos to FITS for heliophysics studies

Astrophotographers and solar researchers convert JPG eclipse images to FITS to analyze corona structure, measure solar prominences, and perform brightness calibration that's impossible with compressed JPG format.

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Process deep-sky object images through astronomical software

Astronomy enthusiasts need FITS format to stack multiple exposures of galaxies and nebulae using specialized software like PixInsight or Siril, which requires the lossless data and metadata preservation of FITS files.

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Convert planetary imaging data for atmospheric analysis

Planetary scientists convert JPG images of Jupiter, Saturn, or Mars to FITS format to study atmospheric features, track storm systems, and perform precise measurements of planetary characteristics over time.

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Prepare lunar surface images for crater analysis and mapping

Lunar researchers and geology students convert JPG moon photos to FITS to enable precise crater counting, topographic analysis, and surface feature measurements with scientific accuracy.

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Convert comet observation images for trajectory calculations

Astronomers tracking comets convert JPG observation photos to FITS format to accurately measure position, brightness, and tail development over multiple observation sessions for orbital calculations.

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Process star field images for variable star studies

Researchers studying variable stars convert JPG time-series images to FITS to create light curves, measure magnitude changes, and perform statistical analysis that requires the precision of astronomical data formats.

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Convert satellite tracking images for orbit verification

Satellite observers and space agencies convert JPG tracking images to FITS format to precisely measure satellite positions, verify orbital parameters, and maintain accurate space object catalogs.

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Prepare meteor shower captures for velocity analysis

Meteor researchers convert JPG meteor trail images to FITS to calculate entry velocities, trajectory angles, and atmospheric ablation patterns with the precision required for scientific meteoritics.

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Convert aurora images for geomagnetic activity studies

Space weather researchers convert JPG aurora photographs to FITS format to analyze intensity, structure, and dynamics of auroral displays in relation to solar wind and geomagnetic conditions.

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Process historical astronomy photos for digital archiving

Libraries and archives converting historical JPG scans of astronomical plates to FITS format ensure long-term data preservation with proper metadata for future research and historical analysis.

MORE JPG TOOLS

Explore our other image operations

The JPG (or JPEG) image format is a widely used compressed file format for digital images. It supports 16 million colors and is ideal for photographs and graphics on the web. With its lossy compression, JPG balances quality and file size, making it perfect for web publishing and storage. Enhance your visual content with this versatile and efficient format, perfect for capturing high-quality images.

Explore all tools

1.8M+

Files converted

and counting

4.8

Average rating

from our users

~4s

Avg. conversion

per image

0

Files kept

Auto-delete in 24h

WHY DRAGDROPDO

Built to be quick, safe, and free

dragdropdo offers seamless flexibility for managing files of any type. Whether it's PDFs, images, or zipped folders, we've got you covered.

Private by default

Files stay encrypted in transit and are automatically removed after 24 hours.

No install required

Run everything in the browser — no desktop app, no sign-up wall to start.

Cloud import

Pull files from Google Drive and keep working without local downloads first.

Share & download

Grab a zip or share a link / QR so teammates can pick up results on any device.

FAQ

Frequently Asked Questions

Answers to frequently asked questions about dragdropdo's JPG to FITS Converter.