Free viewer software for linux

Virtual Machine Manager software (virt-manager for short package name) is a desktop user interface for managing virtual machines. The project presents a summary view of running domains and their live performance & resource utilization statistics. A detailed view presents graphs showing performance & utilization over time. Ultimately it will allow creation of new domains, and configuration & adjustment of a domains resource allocation & virtual hardware. Finally an embedded VNC client viewer presents a full graphical console to the guest domain.

The application logic is written in Python, while the UI is constructed with Glade and GTK+, based on mockups provided by UI interaction designers. The libvirt Python bindings are used to interacting with the underlying hypervisor. This enables the application to be written independant of any particular hypervisor technology. Initially Xen was the primary platform supported, however, since libvirt 0.2.0 and virt-manager 0.3.1 it is possible to manage QEMU and KVM guests too. It is expected that support for additional hypervisors / virtualization products will expand even further over time as additional libvirt drivers are written.
The "Virt Install" tool (virtinst for short package name) is a command line tool which provides an easy way to provision operating systems into virtual machines. It also provides an API to the virt-manager application for its graphical VM creation wizard.

The "Virt Clone" tool (virtinst for short package name) is a command line tool for cloning existing inactive guests. It copies the disk images, and defines a config with new name, UUID and MAC address pointing to the copied disks.
The "Virtual Machine Viewer" application (virt-viewer for short package name) is a lightweight interface for interacting with the graphical display of virtualized guest OS. It uses GTK-VNC as its display capability, and libvirt to lookup the VNC server details associated with the guest. It is intended as a replacement for the traditional vncviewer client, since the latter does not support SSL/TLS encryption of x509 certificate authentication.

Pipe Viewer project is a terminal-based tool for monitoring the progress of data through a pipeline.

It can be inserted into any normal pipeline between two processes to give a visual indication of how quickly data is passing through, how long it has taken, how near to completion it is, and an estimate of how long it will be until completion.

pv is now considered to be stable code: it appears to work reliably on systems it has been tested on.

Image Viewer is an image viewer with real-time interactive pan and zoom viewing that uses the GTK+ toolkit and Imlib (or Imlib2).
Image Viewer can open and save to any image format supported by Imlib, rectangular crop, grab the screen, print, and display on the root window.
Main features:
- View
- Convert
- Grab (Screenshot)
- Print
- Rotate
- Crop
- Resize
- Display on Desktop
Enhancements:
- A bug was fixed in the saving of animated GIF images in which looping was not an option.
- The disposal method support for GIF images was improved.

Image Assistant is a Firefox extension that launches an image in an external viewer, when user selects the context menu item provided, which is titled "Open Image..." and is located under View Image right-click menu item.

This allows for zooming, printing, and other rich functionality not available in the browser.

flactagger is a simple command line tool to tag FLAC files. flactagger is a tagger, not a tag editor/viewer.

flactagger is free software licenced under the GNU GPL.

iSQL-Viewer is an open-source JDBC 2.x compliant database front end written in Java. It implements across multiple platforms features of the JDBC API. It does everything through a single interface.
iSQL-Viewer works with most database platforms, including PostgreSQL, MySQL, Oracle, and Informix. iSQL-Viewer provides a variety of tools and features to carry out common database tasks.
Main features:
- Scripting support using JPython and the IBM BSF framework
- A guided query builder for creating simple and complex SQL queries
- Enhanced object viewing for images, HTML, and other binary format files
- A friendly SQL console for executing SQL statements
- Batch processing of SQL files
- Database introspection
- "Bookmarks" to store SQL commands you commonly use
- Import and export to popular file formats such as Microsoft Excel, XML, HTML and ASCII delimited.
- Enhanced interface support across platforms
Enhancements:
- A bug caused by closing of the application with a large query left in the editor was fixed along with some issues with variable substitution.
- Some missing elements in the service wizard were corrected.
- MonetDB and Gigaspaces were added as part of the default driver set to pick from when creating a new service.