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 |
| reqlog | Search, track and stream logs |
Read our verdict in the software roundup.
 Explore our carefully curated directory of recommended free and open source software, covering every major software category.The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more. Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form. |
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