Most search engines force you to choose: either you get lightweight and embeddable, or you get powerful and scalable.
Indx breaks that tradeoff.
It’s like a motorcycle that can pull a semi-trailer — minimal overhead, ultra-fast response times, and tiny footprint — yet capable of taking on the most demanding enterprise search workloads without breaking a sweat.
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First-Class JSON support
Index and query nested JSON objects natively
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Modern C# API
Designed with simplicity and clarity in mind — get started in minutes.
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Zero External Dependencies
100% pure .NET. No services to run, no JVMs to install, and no native bindings to manage.
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Blazing Fast Indexing & Search
Designed to be the fastest search engine on the market
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Proprietary Fuzzy Matching
Uses a proprietary vector scoring system for intelligent and accurate approximate matches.
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Customizable Scoring & Boosting
Control how results are ranked with simple yet powerful boost logic.
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Faceted Search
Return facet counts and groupings with no additional processing.
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Filter Expressions
Efficient and expressive filters for narrowing down structured queries.
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Battle-Tested & Actively Maintained
Proven in production environments and evolving with modern .NET.
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