Download of JHelioviewer 2.3.3 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus. This free program was originally developed by ESA.
The default filename for the program's installer is JHelioviewer.exe. The program is categorized as Photo & Graphics Tools. The most popular versions of the JHelioviewer are 2.3, 2.2 and 2.1. JHelioviewer was developed to work on Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10 or Windows 11 and is compatible with 32 or 64-bit systems.
From the developer:
JHelioviewer lets you visualize solar image data based on JPEG 2000 format. Using this program, you can browse more than 14 years worth of SOHO data as well as the latest high-resolution images from SDO/AIA. You can also create your own movies of the Sun.
You may want to check out more software, such as PanaVue ImageAssembler, FontViewer or Photo Wizard, which might be similar to JHelioviewer.