Downloads

Tools & Data Downloads

Free astronomical data and image processing software — explore the Milky Way survey from Purple Mountain Observatory, or restore your astrophotography images with LegalPhotoRestorePro.

Frequently Asked Questions

What is the FITS Milky Way Survey?
The Milky Way Survey (银河画卷) is a large-scale astronomical survey conducted by the Purple Mountain Observatory, mapping molecular clouds along the galactic plane using CO emission line observations. The FITS data is publicly available via the Science Data Bank (scidb.cn) for research and educational use.
Is LegalPhotoRestorePro free?
Yes. LegalPhotoRestorePro is a free image restoration tool. Visit the introduction page at hummingbirdlabs.github.io/LegalPhotoRestorePro for full feature details and download instructions.
How do I open FITS survey data?
Use FastTool's free FITS Viewer to open and preview FITS files directly in your browser — no download or installation needed. For advanced processing, try AstroSky (Windows desktop app) or SAOImage DS9.

Download links on this page point to external data repositories and software distribution sites. FastTool does not host, track, or intermediate any downloads.

All tools on fastool.io run entirely in your browser — zero data leaves your device. No personal data is collected, stored, or transmitted to any server. Solar calculations use SunCalc.js; lunar data uses JPL DE440 ephemeris; coordinate transforms use publicly documented EPSG/OGC standards. This site requires no signup, no account, and no cloud processing.