Last Updated on April 29, 2026
angle-grinder is a command-line tool which lets you slice and dice log files.
The software is designed for when you don’t have your data in graphite/honeycomb/kibana/sumologic/splunk/etc. but still want to be able to do sophisticated analytics.
This is free and open source software.
Key Features
- Parse, aggregate, sum, average, min/max, percentile, and sort your data.
- Data is live-updated in the terminal.
- High performance – the software can process well above 1M rows per second (simple pipelines as high as 5M).
- Three basic filters are available:
- Match all logs.
- Case-insensitive match that can include wildcards.
- Case-sensitive match.
Website: github.com/rcoh/angle-grinder
Support:
Developer: Russell Cohen
License: MIT License
angle-grinder is written in Rust. Learn Rust 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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