​​Typesense is a fast, typo-tolerant search engine for building delightful search experiences.

Features:
- Typo Tolerance: Handles typographical errors elegantly, out-of-the-box.
- Simple and Delightful: Simple to set-up, integrate with, operate and scale.
- Blazing Fast: Meticulously architected from the ground-up for low-latency (<50ms) instant searches.
- Tunable Ranking: Easy to tailor your search results to perfection.
- Sorting: Sort results based on a particular field at query time (helpful for features like "Sort by Price (asc)").
- Faceting & Filtering: Drill down and refine results.
- Grouping & Distinct: Group similar results together to show more variety.
- Scoped API Keys: Generate API keys that only allow access to certain records.
- Curation & Merchandizing: Boost particular records to a fixed position in the search results, to feature them.
- Raft-based Clustering: Setup a distributed cluster that is highly available.
- Seamless Version Upgrades: As new versions of Typesense come out, upgrading is as simple as swapping out the binary and restarting Typesense.

https://github.com/typesense/typesense

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