A log viewer that runs in this tab.

Open any line-based log, chain filters into a tree, pull numbers out of messages and plot them. One HTML file. Nothing is uploaded.

Will it read my logs? Set up your format in 2 minutes →
1 filephilogg.html, no build, no CDN
100% localparsing, filters, sessions: all in your browser
offlineworks from file://, too
any formatmark the fields in your own lines, export, reuse

What it does

every screenshot opens the tour →

Filters that nest

Each filter narrows the result of the one above it. The tree is your investigation, readable later.

Take the tour →

Link start and end

Pair “job started” with “job finished” by thread or captured id, then keep only the slow pairs.

Take the tour →

Patterns

Numbers, GUIDs and paths become placeholders, so 40,000 lines turn into 60 message shapes with counts.

Take the tour →

Extract & plot

Write position [*:float] reached, get a table column, plot it over time or against another value.

Take the tour →

Three ways to run it

Here, in the browser

This site serves the release build. Deep links work: link a log by URL straight into the app.

Open PhiLogg

Download one file

Save philogg.html, double-click it. No install, no server, fully offline.

Get the single HTML file

Desktop app

Tauri wrapper with .log file association, native parsing on all cores, tray and picture-in-picture. Windows, macOS, Linux.

Get the desktop app

Download

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