FITScope app icon FITScope
Astrophotography Image Viewer for macOS View on GitHub

Process Your Astrophotography, Natively on Mac

FITScope is a powerful macOS app for viewing, analyzing and enhancing astronomical images.

Download FITScope Download on theMac App Store

Requires macOS 15 or later

Screenshot

Powerful Tools for Astrophotographers

Everything you need to bring out the beauty in your data.

FITS & XISF Optimized

Built from the ground up for astronomy's native formats, with full metadata support.

Advanced Processing

Stretch, curves, levels, gamma, white balance, saturation and more.

Star Detection

Detect and analyze stars with precision and customization.

Plate Solving

Identify objects and solve images to match the night sky.

High Performance

Optimized for speed and smooth performance with large datasets.

Designed for Your Workflow

From exploration to analysis — FITScope has you covered.

FITSXISFRAWTIFFJPEGPNG

Multiple Formats

Support for FITS, XISF, RAW, TIFF, JPEG and PNG files.

Batch Processing

Process multiple files at once with customizable actions.

Coming Soon

Image Stacking

Stack your images to reduce noise and reveal faint details.

Coming Soon

Customizable Workspace

Adjust the layout and panels to match your workflow.

Metadata Explorer

View detailed metadata and headers with ease.

Image processing

A complete, non-destructive processing pipeline

Reveal faint signal and shape your image with a full suite of adjustments — applied live, while your original data stays untouched.

  • Stretch & gamma to lift detail out of the noise floor.
  • Curves & levels with per-channel control.
  • White balance, saturation and automatic debayering.
Screenshot
Astrometry

Detect stars, solve the field, name every object

FITScope reads the sky in your frame — measuring stars, solving the plate, and labeling deep-sky objects directly on the image.

  • Star detection with FWHM, HFR and eccentricity.
  • Plate solving via nova.astrometry.net.
  • Overlays for objects, equatorial grid, north and scale.
Screenshot
Metadata

Every header and keyword, at your fingertips

Inspect the full FITS header and a configurable information panel covering everything your capture software recorded.

  • Searchable FITS headers exactly as written.
  • Configurable info panel — exposure, gain, filter, temperature.
  • Coordinates & sampling with RA/Dec and pixel scale.
Screenshot
FITScope app icon

Built by an Astrophotographer, for Astrophotographers

FITScope is crafted with passion for astronomy and attention to detail. It's more than a viewer — it's a complete toolkit for exploring the universe.