- [Flume](https://flume.apache.org/) - Distributed, reliable, and available service for efficiently collecting, aggregating, and moving large amounts of log data. ([Source Code](https://github.com/apache/flume)) `Apache-2.0``Java`
- [GoAccess](https://goaccess.io/) - Real-time web log analyzer and interactive viewer that runs in a terminal or through the browser. ([Source Code](https://github.com/allinurl/goaccess)) `MIT``C`
- [Loki](https://grafana.com/oss/loki/) - Log aggregation system designed to store and query logs from all your applications and infrastructure. ([Source Code](https://github.com/grafana/loki)) `AGPL-3.0``Go`
- [Logdy](https://logdy.dev) - Web-based real-time log viewer. Stream ANY content to a web UI with autogenerated filters. Parse any format with TypeScript. ([Demo](https://demo.logdy.dev/), [Source code](https://github.com/logdyhq/logdy-core)) `Apache-2.0``Go`
- [rsyslog](https://www.rsyslog.com/) - Rocket-fast system for log processing. ([Source Code](https://github.com/rsyslog/rsyslog)) `GPL-3.0``C`