Open multi-gigabyte logcat files
Indagium supports multi-gigabyte logcat .txt and .log files, with optional split-on-open for the biggest.
Features / Android logcat viewer
A focused Android log viewer for logcat files.
Open a logcat .txt or .log file, preserve its shape, and investigate what happened around the line that matters. Indagium is a free, offline Android log viewer and logcat viewer for macOS, Windows, and Linux — no Android Studio required.
The viewer
Read logcat files without losing context. Keep the whole trace available.
This Android log viewer brings reading, navigation, and investigation into one workspace so a useful clue does not disappear into a copied snippet.
Navigate with a minimap and thread map
Use a minimap, thread map, time deltas, stack-trace folding, and custom issue rules while you read.
Compare tabs and tail files live. Stay in motion.
Open multiple tabs, compare two tabs side by side, or tail a file live with the current filter already applied.
Fold repeating logcat patterns
Collapse recurring regions into colored, nestable groups, or manually fold an explicit range.
What you can open
One viewer for every capture format.
Point Indagium at the file and it opens directly — no conversion step, no adb connection to a device, and no Android Studio project required. Everything below opens as a normal tab in the same viewer.
Logcat text
Open logcat .txt or .log files in threadtime, time, brief, or bare format; unrecognised lines fall back to tag RAW. Level filters cover V, D, I, W, E, and A individually.
Android bugreports
Open a bugreport's .zip or .7z archive directly and pick which content to load into the active tab, instead of extracting the whole archive to disk first.
DLT captures
Open .dlt binary captures and raw DLT streams; frames are decoded as records, and non-verbose payloads are kept as readable text/hex (not interpreted through FIBEX or ARXML).
DLT Viewer exports
Open DLT Viewer text and CSV exports the same way as a native logcat file, including split parts that repeat the CSV header row.
Next clue
A viewer that leads into analysis.
When a line becomes a question, use Indagium's log analyzer — filters, compare views, notes, source lookup, and exports — to keep the investigation connected.
See the log analyzer workflow
Questions
Android log viewer, answered.
Common questions about opening and reading logcat files, bugreports, and DLT captures in Indagium.
What log formats can I open in Indagium's Android log viewer?
Indagium opens logcat text in threadtime, time, brief, and bare formats (unrecognised lines are shown with tag RAW), plus DLT (.dlt) binary captures, raw DLT streams, and DLT Viewer text/CSV exports.
Does Indagium capture logs directly from a connected device?
No. Indagium is an offline logcat viewer — it opens the .txt/.log files you already captured with adb logcat, not a live device capture tool.
Is Indagium free to use?
Yes, Indagium is free to use for both commercial and non-commercial purposes. It is source-available under the PolyForm Perimeter License, not open source.
Can I read logcat files without Android Studio?
Yes. Android Studio's Logcat window follows a connected device; Indagium opens the saved .txt or .log file instead, as a focused desktop app for macOS, Windows, and Linux with filters, folded sequences, and side-by-side comparison.
How large a logcat file can the viewer open?
Multi-gigabyte logs, with an optional split-on-open for the very biggest files.