Top 5 C++ similarity-search Projects

Typesense

129 17,876 9.8 C++

Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences

Project mention: Website Search Hurts My Feelings | news.ycombinator.com | 2023-12-26

There are actually plenty of non-ES products that are way easier to integrate and tune (and get better results with less effort).
- Typesense (https://github.com/typesense/typesense)
- Algolia
- Google Programmable Search Engine (https://programmablesearchengine.google.com/about/)

usearch

20 1,629 9.8 C++

Fast Open-Source Search & Clustering engine × for Vectors & 🔜 Strings × in C++, C, Python, JavaScript, Rust, Java, Objective-C, Swift, C#, GoLang, and Wolfram 🔍

Project mention: USearch SQLite Extensions for Vector and Text Search | news.ycombinator.com | 2024-02-22

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
cbird

5 71 8.2 C++

Command-line program for managing a media collection, with focus on Content-Based Image Retrieval (Computer Vision) methods for finding duplicates.

Project mention: Similar photo finder for screenshots | /r/DataHoarder | 2023-07-04

Try cbird (my program). In addition to playing with thresholds, there are a couple of options that might help. Also if you can share the screenshots I'd be interested in testing.

faiss-mobile

1 34 5.5 C++

FAISS library compiled for iOS, macOS, tvOS, watchOS

Project mention: FAISS Mobile for iOS / macOS | news.ycombinator.com | 2024-03-19

cppbktree

1 6 6.2 C++

Python BK-Tree module based on a C++ implementation
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).