peco is a lightweight interactive filtering tool designed for command-line workflows. Written in Go, it provides a single binary solution for searching and selecting items from input streams in real-time, eliminating the need for external scripts or dependencies.

The tool excels at filtering various data types including process statistics, logs, and files. As you type your query, results update instantly, allowing you to narrow down exactly what you need. Key capabilities include:

Incremental search with real-time result filtering as you type
Multiple selection to choose several items at once
Negative matching to exclude unwanted results using - prefix
Multiple filter types: case-insensitive, case-sensitive, SmartCase, regular expressions, and fuzzy search
Multi-stage filtering to freeze results and continue filtering on narrowed datasets
Customizable keybindings for personalized workflows
Horizontal scrolling for handling long lines

Pipe information from any command-line tool directly to peco for seamless filtering. Whether you're searching through process lists, finding specific files, or managing repositories, peco integrates naturally into existing command-line workflows. The fuzzy search feature is particularly useful for partial pattern matching, while the SmartCase filter intelligently switches between case-sensitive and case-insensitive modes based on your query.

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