| APT | Astronomer's Proposal Tool used to submit Phase I/DD proposals and Phase II programs |
| aXe | aXe Spectral Extraction and Visualization software |
| DSS | Digitized Sky Survey and Related Software |
| Hcompress | An Image Compression Package |
| SPIKE | Planning and Scheduling Software |
| OPUS | A Flexible Pipeline Data Processing Environment |
| Percy | Ephemeris and Geometrical Event Information about Solar System Objects |
| PyRAF | A Command Language for IRAF based on the Python Scripting Language. |
| STSDAS | The Space Telescope Science Data Analysis System |
| StarView | The HST Archive Interface |
| Tiny TIM | PSF & Focus Modeling |
HST Software Documentation
- STScI Site Guide for IRAF and STSDAS
- STSDAS Documentation
- STSDAS User's Guide: Last updated in 1994, but does contain information on some of the older packages in STSDAS
- STSDAS Help
- STSDAS Programmer Documentation
- STSDAS Installation Guide and Reference
Other Software Resources
- Astroplotlib: A multi-language astronomical library of plots, presented as a collection of templates, that are useful to create paper-quality figures.
- DrizzlePac: Software for aligning and drizzling HST images
- Multidrizzle: Automates and simplifies the detection of cosmic-rays and the combination of dithered observations.
- Specview: A tool for 1-D spectral visualization and analysis of astronomical spectrograms.