| Name | Version | Status | Requirements | Standalone | Web Applet | License | VO Ready | Notes |
|---|---|---|---|---|---|---|---|---|
| VizieR | ? | Mature | None | NO | YES | Free | YES | |
| Open SkyQuery | 1.16 | Mature? | None | NO | YES | Free | YES | |
| Aladin | 3.026 | Mature | Java | YES | YES | Free | YES | |
| TOPCAT | 1.5 | Mature? | Java | YES | NO | Free | YES | |
| AstroGrid X-Corr / Federation prototype | ? | ? | None | NO | YES | Free | YES |
| Name | Version | Status | Requirements | Standalone | Web Applet | License | VO Ready | Notes |
|---|---|---|---|---|---|---|---|---|
| R | 2.1.0 | Mature | None | YES | NO? | Free | NO | Extensive statistics package. |
| Mirage | 0.3+ | Beta | Java | YES | NO | Free | YES | Needs VOTable/Registry and FITS plugins. |