Fast and lightweight log viewer for large files that supports columns definition and JSON.
QLogExplorer is a free and open source log files viewer with advanced features.
Main features:
- Very fast and lightweight
- Can handle huge files
- Never locks the log file
- Supports plain text and JSON/NDJSON
- Allows to define columns even for plain text files
- Allows to define different templates for each kind of log file
- Customizable highlighters
- Predefined search parameters
- Advanced search with regular expression and multi-parameters
What's New:
| Publisher | QLogExplorer |
|---|---|
| Author | Rafael Fassi Lobao |
| Version | 1.2.1 |
| Release date | 2026-04-13 |
| License | GPL-3.0 |
| Installer type | inno, zip |
| Architecture | x64 |
| Package ID | QLogExplorer.QLogExplorer |
winget install --id=QLogExplorer.QLogExplorer -ewinget upgrade --id=QLogExplorer.QLogExplorer -ewinget uninstall --id=QLogExplorer.QLogExplorer -e"QLogExplorer-Win64-Setup.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Changes since the last version:
Changes since the last version:
Yes. QLogExplorer is free and open-source software released under the GPL-3.0 license.
The latest version is 1.2.1, released on Apr 13, 2026.
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with b6f95ffdb7e3582d113007d671d57ea15deb6b7ac74fcd2a2776174725ddc3e7.
QLogExplorer runs on Windows and is available for 64-bit (x64) systems.
Run the offline installer with "QLogExplorer-Win64-Setup.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-, or install it with Windows Package Manager: winget install --id=QLogExplorer.QLogExplorer -e --silent.
Open Settings › Apps › Installed apps, find QLogExplorer and select Uninstall. From the command line, run winget uninstall --id=QLogExplorer.QLogExplorer -e.
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