fff
ActiveDescription
fff is a fast, minimal, and hackable command-line file manager written in Go, useful as a lightweight tool layer for shell-driven agent workflows.
Key Features
- Lightning-fast file search by name and content with millisecond latency
- Written in Rust for high performance and low memory usage
- Agent-friendly with structured output that LLMs can parse
- Drop-in replacement for fd/find with the same CLI ergonomics
- Supports glob and regex patterns with flexible filtering syntax
Use Cases
💡 Let agents quickly locate files and symbols in large codebases
💡 Power the search backend of Claude Code or Codex
💡 Replace find/fd on the command line for faster feedback
💡 Use in CI pipelines to locate violating code by content rules
Strengths & Limitations
✅ Strengths
- • Actively maintained, recent updates
- • High community interest (10.4k stars)
- • Permissive open-source license (MIT)
- • Responsive to issues, low backlog
Tags
Categories
Quick Start
# Install fff (macOS / Linux)
brew install fff
# Fast filename search
fff "config*.yaml"
# Search by content
fff --content "TODO"
# Combine glob and case insensitivity
fff --glob "*.ts" --content "useState" --ignore-case