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Open Log Viewer vs Logbert: catalog facts
Open Log Viewer	Logbert
Free Free and open source under GPL-3.0-or-later.	Free Free and open source under the MIT license.
Windows, macOS, Linux	Windows
Opens multiple log files in tabs Follows changes to log files	Receives logs over UDP and TCP or from files Supports Windows Event Log and Syslog
Desktop app built with Electron	Windows only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.