Showing 579 open source projects for "indexing"

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  • 1
    Spotweb

    Spotweb

    Decentralized community

    Spotweb is an open-source PHP-based web interface for the Usenet indexing service Spotnet, allowing users to search, browse, and download NZBs from Usenet content feeds. It provides a full-featured, self-hosted Usenet indexing system that supports user accounts, moderation, comments, and custom filtering. Spotweb makes it easy for users to run their own NZB indexing server and integrates with download clients like SABnzbd or NZBGet.
    Downloads: 10 This Week
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  • 2
    Search-Index

    Search-Index

    A persistent, network resilient, full text search library

    Search-Index is a lightweight and fast JavaScript-based search engine that enables full-text search indexing and retrieval for web applications.
    Downloads: 6 This Week
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  • 3
    pandas

    pandas

    Fast, flexible and powerful Python data analysis toolkit

    pandas is a Python data analysis library that provides high-performance, user friendly data structures and data analysis tools for the Python programming language. It enables you to carry out entire data analysis workflows in Python without having to switch to a more domain specific language. With pandas, performance, productivity and collaboration in doing data analysis in Python can significantly increase. pandas is continuously being developed to be a fundamental high-level building...
    Downloads: 99 This Week
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  • 4
    Vald

    Vald

    Vald. A Highly Scalable Distributed Vector Search Engine

    ...Vald is designed and implemented based on the Cloud-Native architecture. It uses the fastest ANN Algorithm NGT to search for neighbors. Vald has automatic vector indexing and index backup, and horizontal scaling which is made for searching from billions of feature vector data. Vald is easy to use, feature-rich and highly customizable as you needed. Usually, the graph requires locking during indexing, which causes stop-the-world. But Vald uses distributed index graphs so it continues to work during indexing. ...
    Downloads: 0 This Week
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  • 5
    RATS Search

    RATS Search

    BitTorrent P2P multi-platform search engine for Desktop

    Rats Search is a cross-platform search tool for torrent indexing across multiple BitTorrent DHT networks. It provides a GUI for searching decentralized torrent metadata in real time without relying on centralized indexes. Built with Electron and Vue.js, Rats Search emphasizes decentralization and anonymity, allowing users to explore content from distributed sources such as the BitTorrent Mainline DHT and WebTorrent.
    Downloads: 176 This Week
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  • 6
    Arkime

    Arkime

    A full packet capturing, indexing, and database system

    Arkime is an open source, large-scale, full packet capturing, indexing, and database system designed to augment existing security infrastructure by storing and indexing network traffic in standard PCAP format. It offers full network visibility, facilitating the swift identification and resolution of security and network issues. Security teams gain access to the necessary network visibility data essential for responding to and investigating incidents to expose the full attack scope. ...
    Downloads: 54 This Week
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  • 7
    pgai

    pgai

    A suite of tools to develop RAG, semantic search, and other AI apps

    pgai is a suite of PostgreSQL extensions developed by Timescale to empower developers in building AI applications directly within their databases. It integrates tools for vector storage, advanced indexing, and AI model interactions, facilitating the development of applications like semantic search and Retrieval-Augmented Generation (RAG) without leaving the SQL environment.
    Downloads: 10 This Week
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  • 8
    NumPy

    NumPy

    The fundamental package for scientific computing with Python

    Fast and versatile, the NumPy vectorization, indexing, and broadcasting concepts are the de-facto standards of array computing today. NumPy offers comprehensive mathematical functions, random number generators, linear algebra routines, Fourier transforms, and more. NumPy supports a wide range of hardware and computing platforms, and plays well with distributed, GPU, and sparse array libraries.
    Downloads: 133 This Week
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  • 9
    BuntDB

    BuntDB

    Database for Go with custom indexing and geospatial support

    ...It is built for scenarios where you want a lightweight, fast store (reads and writes in memory) but also durability (via append-only file format) and transactional semantics (ACID with single-writer, multiple-reader locking). Among its distinguishing features are support for custom indexing (even within JSON values), spatial (geospatial) indexes with support up to 20 dimensions, flexible iteration over keys (ascending, descending, ranges), TTL/expiry eviction, and embeddability. Because it keeps its data in memory (with persistent backing), it's well suited for caching, session stores, small-scale databases inside Go applications, or applications that prefer simplicity and speed over massive scale. ...
    Downloads: 0 This Week
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  • 10
    bloop

    bloop

    bloop is a fast code search engine written in Rust

    Bloop is an AI-powered code search tool designed to help developers quickly find relevant code snippets, documentation, and usage examples within large repositories. It provides natural language search capabilities and AI-enhanced recommendations for improving code discovery.
    Downloads: 11 This Week
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  • 11
    Flatbush

    Flatbush

    A very fast static spatial index for 2D points and rectangles in JS

    A really fast static spatial index for 2D points and rectangles in JavaScript. An efficient implementation of the packed Hilbert R-tree algorithm. Enables fast spatial queries on a very large number of objects (e.g. millions), which is very useful in maps, data visualizations and computational geometry algorithms.
    Downloads: 4 This Week
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  • 12
    bleve

    bleve

    A modern text indexing library for go

    ...Bleve includes general-purpose analyzers as well as pre-built text analyzers for the following languages, Danish, Dutch, English, Finnish, French, German, Hungarian, Italian, Norwegian, Persian, Portuguese, Romanian, Russian, Sorani, Spanish, Swedish, Thai, and Turkish. Support for aggregating facet information across search results. Supported facet types include Terms Facet, Numeric Range Facet, and Date Range Facet. By indexing your data with bleve you gain the ability to compose query types such as Term, Phrase, Match, Match Phrase, Prefix, Conjunction, Disjunction, Boolean, Numeric and Date Ranges, as well as Query String. Industry standard tf-idf scoring with query time boosting. Includes support for highlighting matching text within document fragments.
    Downloads: 2 This Week
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  • 13
    Nitrite Database

    Nitrite Database

    NoSQL embedded document store for Java

    Nitrite is an embedded NoSQL database for Java applications, offering lightweight document storage with indexing and query capabilities.
    Downloads: 0 This Week
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  • 14
    TNTSearch

    TNTSearch

    A fully featured full text search engine written in PHP

    TNTSearch is a full-text search engine written in PHP, designed to be integrated into Laravel and other PHP applications. It offers real-time, efficient indexing and searching of textual data using SQLite as its storage backend. TNTSearch is highly configurable and supports features like fuzzy searching, customizable ranking algorithms, and boolean search, making it a powerful tool for adding search functionality to websites and applications.
    Downloads: 2 This Week
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  • 15
    ConcourseDB

    ConcourseDB

    Distributed database warehouse for transactions, search and analytics

    ConcourseDB is a distributed, self-tuning database designed for real-time applications, offering strong consistency and ACID compliance without requiring complex configurations. It provides dynamic schema support and automatic indexing.
    Downloads: 0 This Week
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  • 16
    Graph Node

    Graph Node

    Graph Node indexes data from blockchains such as Ethereum

    The Graph is an indexing protocol for querying networks like Ethereum and IPFS. Anyone can build and publish open APIs, called subgraphs, making data easily accessible. Subgraphs can be composed into a global graph of all the world's public information. This data can be transformed, organized, and shared across applications for anyone to query with just a few keystrokes.
    Downloads: 6 This Week
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  • 17
    Engram

    Engram

    A New Axis of Sparsity for Large Language Models

    ...It provides utilities to generate embeddings from text or other structured data, index them using efficient approximate nearest neighbor algorithms, and perform real-time similarity queries even on large corpora. Engineered with speed and memory efficiency in mind, Engram supports batched indexing, incremental updates, and custom distance metrics so developers can tailor search behaviors to their domain’s needs. In addition to raw similarity search, the project includes tools for clustering, ranking, and filtering results, enabling richer user experiences like “related content”, semantic auto-completion, and contextual filtering.
    Downloads: 0 This Week
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  • 18
    S2 Geometry

    S2 Geometry

    Computational geometry and spatial indexing on the sphere

    s2geometry is Google’s open source geometry library designed for representing, analyzing, and manipulating geometric shapes on a sphere rather than a flat plane. This makes it particularly suited for applications involving geospatial data, such as mapping, spatial indexing, and geographic information systems (GIS). The library provides a robust mathematical framework for spherical geometry, allowing developers to work with polygons, points, and regions on the Earth’s surface using consistent and precise algorithms. Unlike traditional 2D geometry libraries, S2 ensures accuracy over large scales by modeling the globe directly, avoiding distortions caused by map projections. ...
    Downloads: 0 This Week
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  • 19
    Text Search Engine

    Text Search Engine

    A text search engine that supports mixed Chinese and English search

    Text-Search-Engine is a JavaScript-based lightweight search engine that enables full-text search functionality. It allows developers to implement fast search indexing and retrieval in web applications.
    Downloads: 0 This Week
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  • 20
    Tile38

    Tile38

    Ultra Fast Geospatial Database & Geofencing Server

    When you need the best performance for your location-based applications, you can rely on Tile38. Tile38 is an ultra-fast, open source geospatial database and geofencing server capable of real-time geofencing, fast spatial indexing and more. It supports a variety of object types including lat/lon, Geohash, bbox, GeoJSON, QuadKey, and XYZ tile; and is capable of operations like Nearby, Within, and Intersects. There’s also built-in support for many popular tools. Tile38 is made up of 3 main components: the server, command line interface tool and server benchmark tool. ...
    Downloads: 9 This Week
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  • 21
    ccls

    ccls

    C/C++/ObjC language server supporting cross references & hierarchies

    C/C++/ObjC language server supporting cross-references, hierarchies, completion, and semantic highlighting. It has a global view of the code base and supports a lot of cross-reference features, see wiki/FAQ. It starts indexing the whole project (including subprojects if exist) parallelly when you open the first file, while the main thread can serve requests before the indexing is complete. Saving files will incrementally update the index. Hierarchies, call (caller/callee) hierarchy, inheritance (base/derived) hierarchy, member hierarchy. Symbol rename. ...
    Downloads: 9 This Week
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  • 22
    ROMM

    ROMM

    A beautiful, powerful, self-hosted rom manager and player

    ...Romm also supports widgets, customization options, and theme choices so users can tailor the visual experience to their preferences while maintaining performance and responsiveness. Privacy is a highlight, with local indexing and search functions that operate without sending data to external servers unless explicitly permitted.
    Downloads: 2 This Week
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  • 23
    VectorChord

    VectorChord

    Scalable, fast, and disk-friendly vector search in Postgres

    VectorChord is an open-source vector database built for local and edge deployment. It supports efficient vector indexing and retrieval using ANN (approximate nearest neighbor) algorithms and is optimized for integration with LLM and AI applications. VectorChord is lightweight and can be embedded in a variety of environments for fast semantic search.
    Downloads: 14 This Week
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  • 24
    OpenViking

    OpenViking

    Context database designed specifically for AI Agents

    OpenViking is an open-source context database engineered for efficient indexing and retrieval of large amounts of unstructured or semi-structured context data used by AI applications. It’s primarily designed to serve as a high-performance, scalable backend for storing app context, embeddings, conversational histories, and other textual artifacts that need rapid lookup and semantic search, which makes it especially useful for systems like chatbots or memory-augmented agents.
    Downloads: 1 This Week
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  • 25
    VideoRAG

    VideoRAG

    "VideoRAG: Chat with Your Videos

    VideoRAG is a retrieval-augmented generation (RAG) framework tailored for video content that enables AI systems to answer questions, summarize, and reason over long videos by combining visual embeddings with contextual search. The system works by first breaking video into clips, extracting visual and audio-textual features, and indexing them into embeddings, then using an LLM with a retriever to pull relevant segments on demand. When a user query is received, VideoRAG locates semantically relevant moments in the video using the embedding index, retrieves associated clips or transcripts, and feeds them to a generative model to produce accurate, grounded answers or summaries. ...
    Downloads: 1 This Week
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