RediSearch is a query and indexing engine for Redis.
It lets you declare indexes on Redis data and query them with a dedicated query language that supports rich text retrieval, vector similarity search, filtering, and ranking. Starting with Redis 8, RediSearch is integrated into Redis rather than being released as a separate standalone module.
This is free and open source software.
Key Features
- Supports a dedicated query language with AND, OR, and NOT operators.
- Offers prefix matching, fuzzy matching, and exact-phrase queries.
- Provides document ranking with BM25 scoring and optional field weighting.
- Includes auto-complete suggestions with fuzzy prefix support.
- Supports stemming-based query expansion in multiple languages and phonetic matching.
- Provides numeric filtering and geospatial search capabilities.
- Includes an aggregation engine for filtering, grouping, and analytics-style queries.
Website: github.com/RediSearch/RediSearch
Support:
Developer: RediSearch
License: GNU Affero General Public License v3.0 / Redis Source Available License 2.0 / Server Side Public License v1
RediSearch is written in C, Rust, and Python. Learn C with our recommended free books and free tutorials. Learn Rust with our recommended free books and free tutorials. Learn Python with our recommended free books and free tutorials.
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