RediSearch - Redis Powered Search Engine

    RediSearch is a source available Full-Text and Secondary Index engine over Redis, developed by Redis Labs .

    Quick Links:

    RediSearch is developed and tested on Linux and Mac OS, on x86_64 CPUs.

    i386 CPUs should work fine for small data-sets, but are not tested and not recommended. Atom CPUs are not supported currently.

    Redisearch implements a search engine on top of Redis, but unlike other Redis search libraries, it does not use internal data structures like sorted sets.

    Client Libraries

    Official and community client libraries in Python, Java, JavaScript, Ruby, Go, C#, and PHP.

    See the Clients page for the full list.

    RediSearch has a distributed cluster version that can scale to billions of documents and hundreds of servers. However, it is only available as part of Redis Labs Enterprise. We also offer official commercial support for RediSearch. See the for more info and contact information.

    Primary Features

    • Full-Text indexing of multiple fields in documents.
    • Incremental indexing without performance loss.
    • Document ranking (provided manually by the user at index time).
    • Complex boolean queries with AND, OR, NOT operators between sub-queries.
    • Optional query clauses.
    • Prefix based searches.
    • Field weights.
    • Auto-complete suggestions (with fuzzy prefix suggestions).
    • Exact Phrase Search, Slop based search.
    • Stemming based query expansion in (using Snowball ).
    • Support for custom functions for query expansion and scoring (see ).
    • Numeric filters and ranges.
    • Geo filtering using Redis’ own Geo-commands.
    • Unicode support (UTF-8 input required).
    • Retrieve full document content or just ids
    • Document deletion and updating with index garbage collection.
    • Partial and conditional document updates.
    1. RediSearch Overview - RedisConf 2019

    Blog posts

    2. Mastering RediSearch / Part II
    4. Search Benchmarking: RediSearch vs. Elasticsearch

    Mailing List / Forum

    Redis Source Available License Agreement - see LICENSE