Tantivy

Tantivy is a fast, embedded full-text search library written in Rust, reimplementing Apache Lucene's core design for modern performance.

Tantivy is your high-performance, embedded search engine library, built in Rust. It's not a separate server: it's a library you link directly into your application, eliminating network latency for single-process tools (CLI, web apps). Inspired by Lucene, Tantivy uses a segmented architecture for concurrent, multithreaded indexing (indexing English Wikipedia in under three minutes). Search features include BM25 relevance scoring, boolean and phrase queries, and columnar 'fast fields' for efficient sorting and aggregation. It runs on Linux, macOS, and Windows, offering a powerful, low-footprint solution.

https://github.com/quickwit-oss/tantivy