Technical Guide Where Finished Logs Go — Deciding Between Delete, Keep, and Compress
The incident investigation is over. The postmortem is written. What's left on disk is the tens of gigabytes of…
Large Log Files
Technical Guide 
Technical Guide The Night the Log Wouldn’t Read — Four Character-Encoding Traps and How to Tell Them Apart
[Update, 16 October 2026] Speed today — Shift-JIS, EUC-JP and UTF-16 can now be searched fast through an index…
Technical Guide You Found the ERROR. You Still Can’t Find the Cause — Four Ways to Trace Causality in Logs
--> grep ERROR worked. The red line is right there on your screen. And the "root cause" field in your report i…
Technical Guide “This File Is Too Large to Open” — Four Go-To Tools That Sink Under Huge Files, and What Comes Next
[Update, 16 October 2026] Speed today — 50 GB is about the same; even at 3 GB, the gap now opens from the seco…
Comparison Opening a 48 GB File Isn’t the Same as Investigating It — EmEditor vs UwView Pro on a 16 GB-RAM Laptop
"Find a specific string in this 48 GB file." When you get that request, what matters is not just "does the sof…
Technical Guide You Found the ERROR. The Cause Is in the Lines Before It — Tracing Context in a Huge Log
Last time we covered opening a 10GB–50GB log without splitting it and finding "ERROR". But a real incident inv…
Technical Guide File Too Large to Open? How to Investigate a 10GB–50GB Log on Windows Without Splitting It
[Update, 16 October 2026] Speed today — Pro is about as fast as before; the free edition is now on par with kl…
Comparison How to Open a 50GB Log File — and Reopen It in 0.05 Seconds. A klogg Alternative, Benchmarked
If you searched for a klogg alternative, you probably already know klogg is good. It is fast, it is free, it i…
Technical Guide How Many Search Threads Is the Right Number? I Measured 0.89 Billion Lines at 1-16 Threads
When you parallelize a text search, how many threads should you use? "One per core," "cores x 2," "physical co…
Release UwView Pro Goes Cross-Platform — Windows, macOS & Linux: Open Huge Files Instantly, Anytime
UwView Pro now runs on Windows, macOS and Linux. One license covers every OS (one-time or monthly — prices unc…