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Technical Guide

Tracing 5xx Errors in Access Logs as One Thread: Putting UwView’s Search, Color-Coding, and Bookmarks Together in Practice

The large-file text viewer UwView has had its features introduced one at a time so far — the color-coding high…
2026.07.21
Technical Guide
Comparison

An Honest Comparison with klogg [Ver1.1.1, Complete Edition] — Free UwView and Upper-Tier Pro, Every Item

We previously published a feature comparison table between the large-file text viewer UwView and the industry-…
2026.07.20
Comparison
Release

UwView v1.1.1 — Instant Right-Click Colorizing, Resume Right Where You Left Off

I've released v1.1.1 of UwView, the large-file text viewer (free, on GitHub). The previous release, v1.1, adde…
2026.07.20
Release
Release

UwView v1.1: Reading Huge Logs by Color — Now with a Color Highlighter and Bundled Presets

We've released v1.1 of UwView, the large-file text viewer (free, open source on GitHub). The headline feature…
2026.07.19
Release
Comparison

An Honest Comparison with klogg — Every Win and Every Loss, Laid Out in a Table

I put together a feature comparison table between the large-file text viewer UwView (free, open source on GitH…
2026.07.18
Comparison
Release

Delete or Keep That Finished Log? A Third Option — “Archive It at 1/9 the Size, and Still Open It Directly”

What do you do with a massive log once the investigation is over? There are usually two options. Delete it (fr…
2026.07.18
Release
Technical Deep Dive

UwView Pro Complete Benchmark — 3GB/10GB/48GB x HDD/SSD/Internal SSD: A Serious 9-Cell Comparison with klogg

UwView Pro (hereafter UVP, on sale now) — the pro edition of the large-file text viewer UwView — was compared…
2026.07.17
Technical Deep Dive
Comparison

UwView Pro — We Compared It to the Industry-Standard klogg, and Its Design Turned Out to Be a Generation from 30 Years Ago

UwView Pro, the premium edition of the large-file text viewer UwView, is now on sale (Windows/macOS/Linux; one…
2026.07.16
Comparison
Technical Deep Dive

The Text Viewer That Opened 890 Million Lines: How Far Can It Really Go, Theoretically?

My self-made large-file text viewer "UwView," which had advertised a "maximum of 200 million lines," recently…
2026.07.15
Technical Deep Dive
Technical Explainer

UwView Opens 51GB / 890 Million Lines of Real Data (OSM Japan) — “Apology: The 200 Million Lines Claim Was a Lie”

A while back I wrote an article about releasing the large-file text viewer "UwView" on GitHub. It claims to ha…
2026.07.09
Technical Explainer
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