Giant Log Viewer is a graphical application designed specifically for opening very large log and text files without loading the entire file into memory. Its architecture allows the program to start quickly regardless of whether the file being examined is measured in megabytes, gigabytes or substantially larger sizes.
The application deliberately caps the JVM heap at a comparatively small size and accesses file content as needed. This makes it useful on systems where opening a multi-gigabyte log in a conventional text editor would require excessive memory or take a long time before the file becomes usable.
Giant Log Viewer provides familiar navigation through its graphical interface while also supporting key bindings inspired by the less pager. Files can be opened with drag and drop, and users can move through their contents using either the keyboard or pointer.
This is free and open source software.
Key Features
- Opens extremely large text and log files.
- Uses a low memory footprint independent of total file size.
- Starts without loading the complete file into memory.
- Provides a graphical desktop interface.
- Supports keyboard and pointer navigation.
- Offers key bindings inspired by the less pager.
- Supports drag and drop for opening files.
- Reads UTF-8 text, including files containing a byte-order mark.
- Reads UTF-16 and ASCII text.
- Supports very long individual lines.
- Correctly handles emoji sequences.
- Cross-platform support – runs on Linux, macOS, and Windows.
Website: github.com/sunny-chung/giant-log-viewer
Support:
Developer: Sunny Chung
License: Apache License 2.0
Giant Log Viewer is written in Kotlin. Learn Kotlin with our recommended free books and free tutorials.
Related Software
| Graphical and Web-Based Log Viewers | |
|---|---|
| Logdy | View and filter terminal output in real time through a local web UI |
| frontail | Stream and filter live output in your web browser |
| Giant Log Viewer | Open enormous text files without loading them into memory |
| LogNote | Inspect files, command output and Android logcat with flexible filters |
| Chipmunk | Analyse multi-gigabyte files quickly with a responsive graphical interface |
| QLogExplorer | Explore very large files with advanced searches and JSON support |
| glogg | Graphical grep-style searching for very large files |
| Xlogmaster | Monitor files, devices and command output with event-triggered actions |
Read our verdict in the software roundup.
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