GoAccess

GoAccess reads web server access logs in real time and presents HTTP statistics directly in a terminal UI or via a live HTML dashboard. It supports a wide range of predefined log formats—including Apache, Nginx, Amazon S3, CloudFront, and others—and allows custom format strings, so users can point it at virtually any log source. Panels update every 200 ms in the terminal and every second in the HTML view, showing visitors, hits, bandwidth, response times, virtual‑host usage, and ASN mappings.

The tool is aimed at system administrators, DevOps engineers, and security professionals who need quick, visual insight into traffic and potential anomalies without leaving the command line. Features such as incremental log processing, on‑disk persistence, and a built‑in WebSocket server enable continuous monitoring and integration with external authentication systems.

GoAccess is written in C, depends only on ncurses, and can be run locally or inside a Docker container. It can also export data as JSON or CSV, and its color scheme and HTML stylesheet are configurable. The project is released under GPL‑2.0, is self‑hostable, and is maintained as a stable, open‑source utility.