LogoRRR

The clue is in your logs. LogoRRR is a visual log viewer for macOS, Windows and Linux, with linked heatmap, text and timeline views, color-coded literal or regular-expression searches and support for multiple logs and compressed bundles. Normal log analysis stays on your device. The full app has a 30-day trial, started explicitly without a credit card or automatic charge. After the trial, opening files and starting new analysis require a one-time purchase. Loaded work remains available to read and copy. No subscription.