750 Open source projects that are alternatives of or similar to Pisa

Apache Lucene and Solr open-source search software

Search Quality Evaluation Tool for Apache Solr & Elasticsearch search-based infrastructures

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🔍 Haystack is an open source NLP framework that leverages Transformer models. It enables developers to implement production-ready neural search, question answering, semantic document search and summarization for a wide range of applications.

Hardware-accelerated vector-based search engine. Available as a HTTP service or as an embedded library.

BitTorrent P2P multi-platform search engine for Desktop and Web servers with integrated torrent client.

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Awesome Search - this is all about the (e-commerce) search and its awesomeness

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🔍 Ambar: Document Search Engine

Next-Generation full text search library for Browser and Node.js

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Algolia Search API Client for Android

A curated list of Awesome Apache Solr links and resources.

A search engine that doesn't track you.

search for any kinds of files to download

Open-source Enterprise Grade Search Engine Software

Tiny and powerful JavaScript full-text search engine for browser and Node

A fully featured full text search engine written in PHP

RESTful search server written in Python, powered by SQLite.

Xapiand: A RESTful Search Engine

Apache Solr open-source search software

Trinity IR Infrastructure

Apache Lucene open-source search software

Search Engine in Erlang

C# .NET MONO NOSQL ( key value store embedded ) ACID multi-paradigm database management system.

Better Search WordPress plugin

Add instant search capabilities to GitHub's search bar

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

community search engine

Privacy-respecting metasearch engine

A library of inverted index data structures

🔍 A set of UI components to build a fully customized search!

Maryam: Open-source Intelligence(OSINT) Framework

A self-hosted, ad-free, privacy-respecting metasearch engine

A library of widgets and helpers to build instant-search applications on Android.

Your 🔵 Superintelligence

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

A math-aware search engine.

Alfred 3 workflow to search for npm packages with npms.io

High-performance log search engine.

Vector AI — A platform for building vector based applications. Encode, query and analyse data using vectors.

Lightweight package to query popular search engines and scrape for result titles, links and descriptions

Lolcate -- A comically fast way of indexing and querying your filesystem. Replaces locate / mlocate / updatedb. Written in Rust.

25,100 queries from the Paralex corpus (Fader et al., 2013) annotated with human ratings of whether they are well-formed natural language questions.

PatZilla is a modular patent information research platform and data integration toolkit with a modern user interface and access to multiple data sources.

Evildork targeting your fiancee👁️

Lightweight Elasticsearch compatible search server.

A query and indexing engine for Redis, providing secondary indexing, full-text search, and aggregations.

The offical home of searchcode-server where you can run searchcode locally. Note that master is generally unstable in the sense that it is not a release. Check releases for release versions https://github.com/boyter/searchcode-server/releases

A full-text search engine in rust

🔍 Search engine for hidden material. Scraping dark web onions, irc logs, deep web etc...

A plugin to generate search data for Hexo.

Search engine like fulltext query support for ActiveRecord

Go Open Source, Distributed, Simple and efficient Search Engine; Warning: This is V1 and beta version, because of big memory consume, and the V2 will be rewrite all code.

Awesome Deep Learning papers for industrial Search, Recommendation and Advertising. They focus on Embedding, Matching, Ranking (CTR prediction, CVR prediction), Post Ranking, Transfer, Reinforcement Learning, Self-supervised Learning and so on.

Source code for the IndieWeb search engine.

A signature-based search engine