RFV

RFV is a tool developed in Java that you can use to open, view, filter and sort data obtained from log4j XML files. It features straightforward options that can be easily figured out.

Since it's written in Java, you must have this platform installed. Otherwise, you don't need to set up anything else. You can drop the program files in a custom location on the disk or copy them to a USB flash drive to run RFV on any PC. Unlike most installers, it doesn't add new entries to the Windows registry or create other files on the disk without your permission.

When it comes to the interface, the application adopts a minimalistic-looking window that has a built-in file explorer to help you locate and open log files.

It's possible to filter data by message description, log level, properties, date and time, logger, NDC, or thread. For example, you can instruct the tool to show only information with an exact or partially written message.

You can refresh information displayed, select all or partial text, and copy contents to the Clipboard to paste it into text editor and closely study the log details. As far as program settings are concerned, it's possible to connect to a remote computer to view logs by specifying the host name or IP address and port number.

There were no stability issues in our tests, since the application didn't freeze, crash or indicate errors. It left a small footprint on system resources, running on a low amount of CPU and RAM.

On the other hand, its options are not that intuitive for less experienced users. Nevertheless, you can test RFV for yourself if you're looking for a simple solution to view log4j XML files.