MyFits is a Visual Studio Code extension to preview astronomical FITS files.
Install: Search MyFits in the VSCode extension store.
Image data:
Table data:
Features
Inspect every HDU header inside FITS, PHA, PI, ARF, and related files with instant keyword search.
Render interactive 2‑D images with pixel-level zooming, panning, colour-map cycling, and vmin/vmax presets (ZScale, common percentiles, or Min/Max). WCS keywords (CD/PC+CDELT/CROTA) expose RA/Dec directly in the metadata bar.
Preview binary and ASCII tables with column metadata, pagination, and global row search.
Keep previews responsive by loading headers first and then fetching image/table payloads on demand.
This extension is still under active development; please share ideas or issues!
Known Issues
Extremely large image/table HDUs can still exceed VS Code memory limits and will show a friendly preview error instead of hanging.
Highly custom FITS table descriptors are normalized into string previews and may not preserve every original low-level formatting detail.
Release Notes
Please check the CHANGELOG.md for the release notes.
