# fff

The fastest and most accurate file search toolkit for AI agents, Neovim, Rust, C, and Node. Keeps an in-memory index for sub-10ms queries instead of spawning ripgrep/fzf per search.

**Type:** library
**Added:** 2026-06-12
**Author:** [dmtrKovalenko](https://github.com/dmtrKovalenko)
**Link:** https://github.com/dmtrKovalenko/fff
**Topics:** Dev Tools, AI Coding, Open Source
**Tags:** rust, search, performance

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Built for long-running processes that search repeatedly. Frecency-ranked, typo-resistant fuzzy matching over both paths and content, with three grep modes (literal, regex, fuzzy fallback) and git-status integration without shelling out to git.

Ships as a Neovim plugin, MCP server, Node/Bun SDK, C library, and native Rust crate. Written mostly in Rust, MIT licensed.

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## Links

- Directory entry: https://andrey-markin.com/directory/fff
- All directory entries: https://andrey-markin.com/directory
- Contact: https://andrey-markin.com/#contact