Local-first visual log analysis

Visual log viewer. Search large log files faster.

LogoRRR is a local desktop log viewer and log analyzer for macOS, Windows, and Linux. Search multiple log files, zips, and directories, visualize large logs as color-coded blocks, and spot error clusters offline without uploading your data.

Version 26.6.9

LogoRRR 26.6.9 feature tour

New in LogoRRR 26.6.9: detached log views, direct search colors, clipboard improvements, and steadier search.

Read more
Download on the Mac App Store
Download LogoRRR from the Microsoft Store
Get LogoRRR from the Snap Store
Native Native Desktop Log Viewer

Built for focused log analysis on macOS, Windows, and Linux, with fast interaction, large-file navigation, and practical system integration.

Private Your Data Stays Local

Log files never leave your machine. No uploads, no cloud processing, no account required.

Offline Works Offline

Full functionality without an internet connection. Analyze logs on a plane, in a data center, or behind a firewall.

Visual log analysis

Filter, Search & Explore

Use the interactive block view to spot error clusters at a glance. Apply filters, search multiple log files, and navigate to any event in seconds.

Overview Log heatmap
LogoRRR visual log viewer showing a heatmap-style log map beside highlighted log entries.
Search Dense scan
LogoRRR search view showing dense colored log blocks and matching highlighted lines.
Timeline Package-ready
LogoRRR timeline view showing compressed colored activity bands across a large log file.
Local safety

Your Data Stays Local

Log files never leave your machine. No uploads, no cloud processing, no account required.

  • Built for focused log analysis on macOS, Windows, and Linux, with fast interaction, large-file navigation, and practical system integration.
  • Full functionality without an internet connection. Analyze logs on a plane, in a data center, or behind a firewall.
Quick start

Quick Start

  1. Download & Install

    Pick the package for your platform above. Run the installer or open the app bundle — no runtime dependencies required.

  2. Open Your Log Files

    Drag & drop any log file — or a whole zip archive — directly onto the window. LogoRRR opens and visualizes it immediately.

  3. Filter, Search & Explore

    Use the interactive block view to spot error clusters at a glance. Apply filters, search multiple log files, and navigate to any event in seconds.