🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.

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• Updated Nov 10, 2026
• Rust

Real-time Geospatial and Geofencing

database location geo geospatial spatial geofences index

• Updated Oct 21, 2026
• Go

Your own search engine

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• Updated Nov 12, 2026
• Go

HTTP web server index for Apache httpd, lighttpd and nginx.

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• Updated Jul 25, 2024
• JavaScript

Go Open Source, Distributed, Simple and fastest efficient text/vector Search Engine

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• Updated Nov 12, 2026
• Go

Provides functions to read and write from/to an object or array using a simple string notation

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• Updated Nov 6, 2026
• PHP

A crazy fast analytical database, built on bitmaps. Perfect for ML applications. Learn more at: http://docs.featurebase.com/. Start a Docker instance: https://hub.docker.com/r/featurebasedb/featurebase

go sql database big-data bitmap index pilosa

• Updated Feb 21, 2024
• Go

Apache Lucene.NET is an open-source full-text search library written in C#, ported from the Apache Lucene project.

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• Updated Nov 6, 2026
• C#

Hypothetical Indexes for PostgreSQL

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• Updated Nov 8, 2026
• C

PySonar2: a semantic indexer for Python with interprocedual type inference

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• Updated Mar 2, 2026
• Java

Legacy index for FreeCAD < 1.0.0

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• Updated Nov 3, 2026

Blast is a full text search and indexing server, written in Go, built on top of Bleve.

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• Updated Dec 10, 2021
• Go

RUM access method - inverted index with additional information in posting lists

postgresql index fulltext-search access-method

• Updated Nov 9, 2026
• C

🪿 LinGoose is a Go framework for building awesome AI/LLM applications.

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• Updated Mar 15, 2026
• Go

ELKI Data Mining Toolkit

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• Updated Aug 10, 2026
• Java

Open source SQL Server troubleshooting: sp_PressureDetector, sp_QuickieStore, sp_HumanEvents, and other SQL Server scripts for performance troubleshooting

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• Updated Nov 11, 2026
• TSQL

Automatic TypeScript barrels (index.ts files) for your entire code base

cli npm node typescript index barrel

• Updated Oct 2, 2026
• TypeScript

Lucene based secondary indexes for Cassandra

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• Updated May 27, 2020
• Java

Free GUI Tool for Index Maintenance on SQL Server and Azure

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• Updated Sep 13, 2026
• C#

SCIndexView provide a index view like Wechat.

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• Updated Jan 5, 2021
• Objective-C