master/docs/sysadmin-devops/system-monitoring-tracing/Log Analyzers.md

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Log Analyzers

Name Vendor/Webpage GitHub Repo Brief Description Tags
angle-grinder — (primarily GitHub-based project) /angle-grinder CLI tool to parse, aggregate, and analyze log files/streams in real time (supports JSON/logfmt/generic formats, sum/avg/percentiles/sort, live terminal updates). [log-analysis, CLI, aggregation, real-time, Rust]
lnav https://lnav.org/ /tstack/lnav Advanced terminal log file navigator with automatic format detection, merging, tailing, search/filtering, SQLite querying, and TUI interface. [log-analysis, CLI, TUI, viewer, search, auto-refresh, SQLite]
GoAccess https://goaccess.io/ /allinurl/goaccess Real-time interactive terminal analyzer for web server access logs (HTTP stats: visitors, requests, bandwidth, referrers; supports HTML/JSON/CSV output). [log-analysis, CLI, real-time, web-logs, HTTP, analytics, viewer]
ngxtop — (primarily GitHub-based project) /lebinh/ngxtop Real-time top-like metrics viewer for nginx (and compatible) access logs (requests, status codes, upstreams, bandwidth; configurable formats/filters). [log-analysis, CLI, real-time, nginx, web-logs, monitoring, top-like, Python]