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 is written in Go. Learn Go with our recommended free books and free tutorials.
Related Software
| Console Log File Analyzers | |
|---|---|
| journalctl | Query and display messages from the journal |
| lnav | Curses-based tool for viewing and analyzing log files |
| Gonzo | Go based TUI for log analysis |
| angle-grinder | Slice and dice logs |
| MultiTail | Monitor logfiles and command output in multiple windows |
| Chipmunk | Fast logfile viewer that can deal with huge logfiles (>10 GB) |
| TWSLA | Work with large log sets without deploying a heavier log management stack |
| Swatch | Simple Log Watcher is a useful tool to monitor just about any type of log |
Read our verdict in the software roundup.
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