Showing 67 open source projects for "document indexing"

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  • 1
    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: 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: 2 This Week
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  • 3
    SemTools

    SemTools

    Semantic search and document parsing tools for the command line

    SemTools is an open-source command-line toolkit designed for document parsing, semantic indexing, and semantic search workflows. The project focuses on enabling developers and AI agents to process large document collections and extract meaningful semantic representations that can be searched efficiently. Built with Rust for performance and reliability, the toolchain provides fast processing of text and structured documents while maintaining low system overhead. ...
    Downloads: 0 This Week
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  • 4
    fess

    fess

    Open source enterprise search server for websites, files, and data

    ...It enables organizations to quickly deploy a scalable search environment without requiring deep knowledge of underlying search technologies. Fess is built on top of OpenSearch and offers an integrated solution for crawling, indexing, and searching documents from websites, file systems, and various data stores. Fess includes a built-in crawler that can collect content from sources such as databases, CSV files, and shared storage, making it suitable for centralized knowledge discovery. It supports indexing and searching across many document formats including office documents, PDFs, and compressed archives. ...
    Downloads: 25 This Week
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  • 5
    PoloDB

    PoloDB

    PoloDB is an embedded document database

    PoloDB is an embedded document-oriented NoSQL database that provides MongoDB-like functionality in a lightweight package, ideal for local storage in applications.
    Downloads: 1 This Week
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  • 6
    RavenDB

    RavenDB

    ACID Document Database

    A NoSQL document database designed for high-performance, real-time applications with built-in distributed capabilities.
    Downloads: 1 This Week
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  • 7
    WeKnora

    WeKnora

    LLM framework for document understanding and semantic retrieval

    WeKnora is an open source framework developed for deep document understanding and semantic information retrieval using large language models. It focuses on analyzing complex and heterogeneous documents by combining multiple processing stages such as multimodal document parsing, vector indexing, and intelligent retrieval. It follows the Retrieval-Augmented Generation (RAG) paradigm, where relevant document segments are retrieved and used by language models to generate accurate, context-aware responses. ...
    Downloads: 8 This Week
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  • 8
    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: 0 This Week
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  • 9
    LightRAG

    LightRAG

    "LightRAG: Simple and Fast Retrieval-Augmented Generation"

    LightRAG is a lightweight Retrieval-Augmented Generation (RAG) framework designed for efficient document retrieval and response generation. It is optimized for speed and lower resource consumption, making it ideal for real-time applications.
    Downloads: 0 This Week
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  • 10
    Kivik

    Kivik

    Common interface to CouchDB or CouchDB-like databases for Go

    Kivik is a Go client library for interacting with CouchDB and PouchDB databases, providing an abstraction layer for NoSQL document storage and retrieval. It simplifies database operations for Go developers.
    Downloads: 0 This Week
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  • 11
    ODMantic

    ODMantic

    Sync and Async ODM (Object Document Mapper) for MongoDB

    Odmantic is an Object-Document Mapper (ODM) for MongoDB, designed for Python applications using Pydantic models, providing a seamless integration with type safety and validation.
    Downloads: 0 This Week
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  • 12
    Morphia

    Morphia

    MongoDB object-document mapper in Java

    MongoDB Object Document Mapping for the JVM. Bidirectional mapping to and from the database. Transparently map your Java entities to MongoDB documents and back.
    Downloads: 0 This Week
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  • 13
    RAG API

    RAG API

    ID-based RAG FastAPI: Integration with Langchain and PostgreSQL

    rag_api is an open-source REST API for building Retrieval-Augmented Generation (RAG) systems using LLMs like GPT. It lets users index documents, search semantically, and retrieve relevant content for use in generative AI workflows. Designed for rapid prototyping, it is ideal for chatbot development, document assistants, and knowledge-based LLM apps.
    Downloads: 2 This Week
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  • 14
    PixelRAG

    PixelRAG

    The beginning of scalable pixel-native search

    PixelRAG is a visual retrieval-augmented generation system that searches documents by how they look, not only by the text they contain. It renders web pages, PDFs, and images into screenshot tiles, then performs retrieval over those visual representations. This approach preserves layout, tables, charts, diagrams, infographics, and other visual structure that traditional HTML or text parsing can miss. The project includes tools for rendering, chunking, embedding, indexing, and serving visual...
    Downloads: 0 This Week
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  • 15
    Open Semantic Search

    Open Semantic Search

    Open source semantic search and text analytics for large document sets

    Open Semantic Search is an open source research and analytics platform designed for searching, analyzing, and exploring large collections of documents using semantic search technologies. It provides an integrated search server combined with a document processing pipeline that supports crawling, text extraction, and automated analysis of content from many different sources. Open Semantic Search includes an ETL framework that can ingest documents, process them through analysis steps, and...
    Downloads: 3 This Week
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  • 16
    Kernel Memory

    Kernel Memory

    Research project. A Memory solution for users, teams, and applications

    Kernel Memory is an open-source reference architecture developed by Microsoft to help developers build memory systems for AI applications powered by large language models. The project focuses on enabling applications to store, index, and retrieve information so that AI systems can incorporate external knowledge when generating responses. It supports scenarios such as document ingestion, semantic search, and retrieval-augmented generation, allowing language models to answer questions using...
    Downloads: 15 This Week
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  • 17
    DocuBrowse

    DocuBrowse

    This does for Documents what repo-browser does for repos

    DocuBrowse is a local AI-powered document search engine for personal or professional file collections. It indexes documents such as PDFs, Word files, spreadsheets, presentations, ebooks, HTML, text, and Markdown. The system combines SQLite FTS5 keyword search with local semantic embeddings for meaning-based retrieval. Users can click search results to generate an AI synopsis before opening the original file. It runs entirely on the user’s machine with Ollama models, so it does not require...
    Downloads: 0 This Week
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  • 18
    PageIndex

    PageIndex

    Document Index for Vectorless, Reasoning-based RAG

    PageIndex is an innovative open-source framework that reimagines retrieval-augmented generation (RAG) by eliminating conventional vector similarity search and instead building hierarchical semantic indexes that mirror a document’s natural structure. Rather than chunking text and embedding it into a vector database, PageIndex constructs a tree-structured index — similar to a detailed, AI-enhanced table of contents — that a large language model can traverse to locate the most relevant sections...
    Downloads: 1 This Week
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  • 19
    OCRBase

    OCRBase

    MD/.JSON Document OCR and structured data extraction API

    ...The core output is designed for downstream automation, producing structured results like JSON according to user-defined schemas while also providing readable formats like Markdown for human review or indexing. It includes real-time job progress updates via WebSockets, which makes it easier to integrate into UIs, dashboards, or ingestion systems where users need feedback on long-running document processing.
    Downloads: 0 This Week
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  • 20
    All-in-RAG

    All-in-RAG

    Big Model Application Development Practice 1

    ...The repository provides a structured learning path that covers both theoretical foundations and practical implementation steps for RAG systems. It explains the full development pipeline required to create knowledge-aware AI assistants, including data preparation, document indexing, vector embedding generation, and retrieval strategies. The project also explores advanced topics such as hybrid retrieval methods, query optimization, and evaluation techniques for improving system accuracy. Alongside theoretical explanations, the repository includes hands-on exercises and example projects that demonstrate how to build production-ready RAG systems. ...
    Downloads: 2 This Week
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  • 21
    Pathway AI Pipelines

    Pathway AI Pipelines

    Ready-to-run cloud templates for RAG

    Pathway AI Pipelines is a collection of ready-to-deploy AI pipeline templates designed to help developers rapidly build production-grade retrieval-augmented generation and enterprise search applications. The project provides end-to-end examples that connect live data sources to LLM workflows, enabling applications to stay synchronized with continuously changing information. It supports numerous connectors including local files, Google Drive, SharePoint, Kafka, PostgreSQL, and real-time APIs,...
    Downloads: 0 This Week
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  • 22
    MongoDB Rust Driver

    MongoDB Rust Driver

    The official MongoDB Rust Driver

    ...The crate also includes BSON encoding and decoding that maps cleanly to Rust types, so developers can work with rich document structures while retaining Rust’s performance guarantees.
    Downloads: 0 This Week
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  • 23
    ccls

    ccls

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

    Document symbols and approximate search of workspace symbol. Hover information. Diagnostics and code actions (clang FixIts). Semantic highlighting and preprocessor skipped regions.
    Downloads: 0 This Week
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  • 24
    gensim

    gensim

    Topic Modelling for Humans

    Gensim is a Python library for topic modeling, document indexing, and similarity retrieval with large corpora. The target audience is the natural language processing (NLP) and information retrieval (IR) community.
    Downloads: 0 This Week
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  • 25
    elasticsearc-php

    elasticsearc-php

    PHP low-level client for Elasticsearch

    Introducing Elasticsearch DSL library to provide objective query builder for Elasticsearch bundle and elasticsearch-php client. You can easily build any Elasticsearch query and transform it to an array. This agnostic package is a lightweight wrapper on top of the Elasticsearch PHP client. Its main goal is to allow for easier structuring of queries and indices in your application. It does not want to hide or replace the functionality of the Elasticsearch PHP client. Feature complete, object...
    Downloads: 0 This Week
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