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
Publisher’s description
What is QLogExplorer?
QLogExplorer by QLogExplorer is open-source Windows software in the developer utilities category. It is written in C++. Besides Windows, it is available for Linux.
Installation and requirements
The publisher provides EXE (Inno Setup) and Portable installers for 64-bit Windows. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 1.2.1, released on April 13, 2026. The version history goes back to January 11, 2026: 3 releases, all linked to the official files.
Popularity and file types
The source code on GitHub (rafaelfassi/qlogexplorer) has 25 stars. Similar programs include WinMerge, jq and x64dbg.
Project description on GitHub: “A blazing-fast, cross-platform log viewer and analyzer designed to handle massive files. Zero file-locking, columns definition via regex, native JSON/NDJSON support and advanced multi-parameter search.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Also runs on Linux
Cons
- No native ARM64 build
In short: QLogExplorer is an open-source developer utilitie tool for 64-bit PCs. Administrators can deploy it unattended.
Key features
- Fast and can handle huge files
- Never locks the file
- Supports plain text and JSON
- Template oriented
- Allows to define columns even for plain text files
- Customizable highlighters
- Predefined search parameters
- Advanced search with multi-parameters
AppStream · Flathub
Is QLogExplorer safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
B6F95FFDB7E3582D113007D671D57EA15DEB6B7AC74FCD2A2776174725DDC3E7· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 3 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.2.1Latest | April 13, 2026 | — | 64-bit EXE (Inno Setup)64-bit ZIP |
| 1.1.3 | March 25, 2026 | — | 64-bit EXE (Inno Setup)64-bit ZIP |
| 1.1.2 | January 11, 2026 | — | 64-bit EXE (Inno Setup)64-bit ZIP |
Install from the command line
Silent install ›winget install --id QLogExplorer.QLogExplorer -eQLogExplorer-Win64-Setup.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Also for other systems
flatpak install flathub io.github.rafaelfassi.QLogExplorerInformation
- Publisher
- QLogExplorer
- Category
- Developer utilities
- Licence
- GPL-3.0
- Price
- Free
- Source code
- github.com/rafaelfassi/qlogexplorer
- Written in
- C++
- Content rating
- All ages
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (Inno Setup), Portable
- Other platforms
- Linux
- Version
- 1.2.1
- Released
- April 13, 2026
- Added to the catalogue
- March 23, 2026
- Versions listed
- 3
- Downloads on ExeAtlas
- 1
- GitHub stars
- 25
- GitHub forks
- 1
- Website
- rafaelfassi.github.io
- winget ID
- QLogExplorer.QLogExplorer
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is QLogExplorer free?
Yes. QLogExplorer is open-source software under the GPL-3.0 licence.
Is QLogExplorer safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install QLogExplorer with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can QLogExplorer be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does QLogExplorer run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of QLogExplorer?
The versions page lists all 3 versions with links to their official installer files, back to January 11, 2026.
What are alternatives to QLogExplorer?
WinMerge, jq, x64dbg, Biome and delta. The alternatives page compares them.
