I needed a tool to view multiple log files in a merged view, and easily filter based on the specified fields. Spent a good amount of time searching, but couldn’t find any open source tool that quite did what I wanted. So, ended up building a custom solution instead (I would appreciate suggestions on tools that have similar functionality).

I don't know much about GUIs (most all my PC based utilities are CLI) - but I did have the following:

  - I know enough Python to spot obviously wrong things
  - Some knowledge of how to make programs performant in general
  - ... and tokens to burn :)

Usage Video: https://youtu.be/37V_kZO2TLA

Key Features:

  - Merge and display multiple log files in a single, chronologically ordered view
  - Live log monitoring with auto-scroll
  - Add files individually or discover them recursively with regex filtering
  - Plugin-based system to support any log format (easy to extend!)
  - Filtering: discrete values, numeric ranges, regex/text, and time-based queries
  - Color-coded file identification
  - Configurable columns and ordering
  - Built-in plugins for syslog, CANKing (CAN Bus monitoring tool), and another custom log format called dbglog.