Log Analyzers

Gonzo – Go based TUI for log analysis

Gonzo is a powerful, real-time log analysis terminal UI inspired by k9s.

Analyze log streams with beautiful charts, AI-powered insights, and advanced filtering – all from your terminal.

This is free and open source software.

  • Real-Time Analysis:
    • Live streaming – Process logs as they arrive from stdin, files, or network.
    • OTLP native – First-class support for OpenTelemetry log format.
    • OTLP receiver – Built-in gRPC server to receive logs via OpenTelemetry protocol.
    • Format detection – Automatically detects JSON, logfmt, and plain text.
    • Severity tracking – Color-coded severity levels with distribution charts.
  • Interactive Dashboard:
    • k9s-inspired layout – Familiar 2×2 grid interface.
    • Real-time charts – Word frequency, attributes, severity distribution, and time series.
    • Keyboard + mouse navigation – Vim-style shortcuts plus click-to-navigate and scroll wheel support.
    • Smart log viewer – Auto-scroll with intelligent pause/resume behavior.
    • Global pause control – Spacebar pauses entire dashboard while buffering logs.
    • Modal details – Deep dive into individual log entries with expandable views.
    • Log Counts analysis – Detailed modal with heatmap visualization, pattern analysis by severity, and service distribution.
    • AI analysis – Get intelligent insights about log patterns and anomalies with configurable models.
  • Advanced Filtering
    • Regex support – Filter logs with regular expressions.
    • Attribute search – Find logs by specific attribute values.
    • Severity filtering – Focus on errors, warnings, or specific log levels.
    • Interactive selection – Click or keyboard navigate to explore logs.
  • AI-Powered Insights
    • Pattern detection – Automatically identify recurring issues.
    • Anomaly analysis – Spot unusual patterns in your logs.
    • Root cause suggestions – Get AI-powered debugging assistance.
    • Configurable models – Choose from GPT-4, GPT-3.5, or any custom model.
    • Multiple providers – Works with OpenAI, LM Studio, Ollama, or any OpenAI-compatible API.
    • Local AI support – Run completely offline with local models.

Website: github.com/control-theory/gonzo
Support:
Developer: LogAnalyzer Contributors
License: MIT License

Gonzo in action
Click image for full size

Gonzo is written in Go. Learn Go with our recommended free books and free tutorials.


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Read our verdict in the software roundup.


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