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Browse free open source Search software and projects below. Use the toggles on the left to filter open source Search software by OS, license, language, programming language, and project status.

  • All-in-One IT Monitoring - No More Blind Spots Icon
    All-in-One IT Monitoring - No More Blind Spots

    Stop juggling tools. PRTG gives you a complete, real-time view of your IT: servers, devices, cloud, and more - in one easy dashboard.

    Tired of switching between different tools and missing critical alerts? PRTG brings everything together, monitoring your entire IT infrastructure from a single, intuitive interface. Whether it’s servers, switches, printers, or cloud services, you get instant visibility and clear notifications - no technical jargon, no clutter. Set up in minutes, PRTG helps you prevent downtime, reduce stress, and prove your value to your company. Focus on your job, not on chasing issues. Try PRTG and experience true IT peace of mind.
    Get Your Unified IT Trial
  • The only CRM built for B2C Icon
    The only CRM built for B2C

    Stop chasing transactions. Klaviyo turns customers into diehard fans—obsessed with your products, devoted to your brand, fueling your growth.

    Klaviyo unifies your customer profiles by capturing every event, and then lets you orchestrate your email marketing, SMS marketing, push notifications, WhatsApp, and RCS campaigns in one place. Klaviyo AI helps you build audiences, write copy, and optimize — so you can always send the right message at the right time, automatically. With real-time attribution and insights, you'll be able to make smarter, faster decisions that drive ROI.
    Learn More
  • 1
    Bowtie, an ultrafast, memory-efficient short read aligner for short DNA sequences (reads) from next-gen sequencers. Please cite: Langmead B, et al. Ultrafast and memory-efficient alignment of short DNA sequences to the human genome. Genome Biol 10:R25.
    Leader badge">
    Downloads: 554 This Week
    Last Update:
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  • 2
    Elasticsearch

    Elasticsearch

    A Distributed RESTful Search Engine

    Elasticsearch is a distributed, RESTful search and analytics engine that lets you store, search and analyze with ease at scale. It lets you perform and combine many types of searches; it scales seamlessly, and offers answers incredibly fast with search results you can rank based on a variety of factors. Elasticsearch can be used for a wide variety of use cases, from maps and metrics to site search and workplace search, and with all data types.
    Downloads: 11 This Week
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  • 3

    FTimes

    A forensic system baselining, searching, and evidence collection tool

    FTimes is a forensic system baselining, searching, and evidence collection tool. Its primary purpose is to gather and/or develop topographical information and attributes about specified directories and files in a manner conducive to intrusion and forensic analysis.
    Downloads: 3 This Week
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  • 4
    Blaze is an application launcher that distinguishes from amongst the others by being able to automate recurrent tasks performed in the file-system or even any application on Microsoft Windows.
    Downloads: 2 This Week
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  • Run applications fast and securely in a fully managed environment Icon
    Run applications fast and securely in a fully managed environment

    Cloud Run is a fully-managed compute platform that lets you run your code in a container directly on top of scalable infrastructure.

    Run frontend and backend services, batch jobs, deploy websites and applications, and queue processing workloads without the need to manage infrastructure.
    Try for free
  • 5
    OpenEphyra is an open framework for question answering (QA). It retrieves answers to natural language questions from the Web and other sources. Visit http://www.ephyra.info/ for more details and information on joining this open research initiative.
    Downloads: 1 This Week
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  • 6
    SCAN
    SCAN (Smart Content Aggregation and Navigation) is a universal semantic content aggregator. It combines search, text analysis, tagging and metadata functions to provide new user experience of desktop navigation and document management.
    Downloads: 3 This Week
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  • 7

    OPTIMA cidoc-crm Semantic Annotation

    Semantic annotation of archaeology reports with respect to CIDOC-CRM

    The semantic annotation system OPTIMA is the result of Andreas Vlachidis PhD work, (supervised by Prof. Douglas Tudhope, University of Glamorgan, UK). OPTIMA performs the NLP tasks of Named Entity Recognition, Relation Extraction, Negation Detection and Word Sense Disambiguation using hand-crafted rules and SKOS terminological resources (English Heritage Thesauri and Glossaries). The resulted semantic annotations are associated with classes of the (ISO 21127:2006) CIDOC Conceptual Reference Model (CRM) and its archaeological extension, CRM-EH. OPTIMA is also targeted at the detection and recognition of contextual relations between CRM entities. Such relations are modeled with respect to the CRM-EH archaeology extension. The pipeline targets the CIDOC-CRM entities; E19.Physical_Object, E53.Place, E49.Time_Appellation and E57.Material and the CRM-EH entities; EHE1001.Context_Event, EHE1002.Production_Event, EHE1004.Deposition_Event and P45.consists_of material property
    Downloads: 1 This Week
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  • 8
    langcore allow build semantic cores of different humans' and non humans' languages for text to generation and searches. Build cores of many languages and determine language of unknown text or type of file, or determination of unknown author. Click AllF
    Downloads: 1 This Week
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  • 9
    A high-performance implementation of bloom filters, a lightweight duplicate detection algorithm.
    Downloads: 0 This Week
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  • Create and run cloud-based virtual machines. Icon
    Create and run cloud-based virtual machines.

    Secure and customizable compute service that lets you create and run virtual machines.

    Computing infrastructure in predefined or custom machine sizes to accelerate your cloud transformation. General purpose (E2, N1, N2, N2D) machines provide a good balance of price and performance. Compute optimized (C2) machines offer high-end vCPU performance for compute-intensive workloads. Memory optimized (M2) machines offer the highest memory and are great for in-memory databases. Accelerator optimized (A2) machines are based on the A100 GPU, for very demanding applications.
    Try for free
  • 10
    The Diversity Engine provides tools to create diversity-aware multimedia search applications.
    Downloads: 0 This Week
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  • 11
    DynaQ

    DynaQ

    Innovative text document search. http://dynaq.opendfki.de for details.

    The goal of DynaQ is to develop an inquiry system to explore the personal information space, supporting you with the searching paradigm 'orienteering'. DynaQ is a (desktop)search engine with enhanced functionality for file, email and blog search. Look at our GitLab homepage for sourcecode and documentation: http://dynaq.opendfki.de
    Downloads: 0 This Week
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  • 12
    The GIS Metadata Manager is a simple Java-based desktop application to manage files from geographic information systems (GIS) in a specified directory by grouping files into records, adding metadata and searching the metadata to find files.
    Downloads: 0 This Week
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  • 13
    This package contains different tools to add NLP capabilities for Lucene 4.x (it has been tested using Lucene version from 4.6.x to 4.8.1). Although it was originally developed for German, it is, mostly, language independent. It allows the user to lemmatize words to be indexed, to weight termy ba their parts of speech (e.g. weighting nouns mor hevaily than pronouns), and to add synonyms taken from GermaNet or a list you provide to the search index and thereby increase recall of lucene.
    Downloads: 0 This Week
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  • 14
    GoldenOrb is a java library under the Apache License V2.0 for correlation, summarization and clustering of text information.
    Downloads: 0 This Week
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  • 15
    Kriterion is a document retrieval and categorization engine capable of full text searching. There is no need for keyword or context-based information.
    Downloads: 0 This Week
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  • 16
    Regular expressions system with Lisp-styled syntax. Also this software can be used as a library for embedding lisp-syntax regular expressions in an another programm.
    Downloads: 0 This Week
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  • 17
    Lucino is a C-library with some support for reading and writing Apache Lucene-indices. It currently comes with PHP- and Python bindings.
    Downloads: 0 This Week
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  • 18
    MyLib is a smart desktop assistant to manage PDF/PPT/PS documents. These types of documents are frequently used by academic & engineering communities.
    Downloads: 0 This Week
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  • 19
    Development and support of OCFA have been discontinued. the code has moved to these github repositories: https://github.com/DNPA/OcfaLib https://github.com/DNPA/OcfaArch https://github.com/DNPA/OcfaJavaLib https://github.com/DNPA/OcfaModules https://github.com/DNPA/OcfaDoc If you are interested in contributing to ongoing work on the creation of a community maintained OCFA inspired computer forensic framework, please join the Mattock/MattockFS community page on G+: https://plus.google.com/communities/102487198908055860744
    Downloads: 0 This Week
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  • 20

    Primes

    Calculate primes by using extremely fast sorting

    This project considers the problem of calculating primes as a sorting problem. It includes the most efficient tree-based sorting algorithm that is possible and shows that finding a new prime can be done by sorting the differences between the previous primes in the right way. Unfortunately it has turned out that going this way is even more slowly than trying to find primes by brute force. So it can only be used as a test with heavy load for the sorting algorithm, which can be used for sorting any kind of data. And as already mentioned, it's just the most efficient tree-based sorting algorithm that you can get. But furthermore this way of finding primes interestingly leaves a hard nut to crack for mathematicians: In very rare cases it finds numbers that are not primes. For all primes below one million this phenomenon arises in exactly two cases: 31213 which is 7 * 7 * 7 * 7 * 13 336141 which is 3 * 3 * 13 * 13 * 13 * 17 Who can explain, why?
    Downloads: 0 This Week
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  • 21
    Network grep, on steroids
    Downloads: 0 This Week
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  • 22
    ScenConnect shows scenarios as networks of situation and event tag sets, for fast comparisons. It links scenarios to tags, scores, and other metadata, creating situationals suitable for search, mining, machine learning, and planning.
    Downloads: 0 This Week
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  • 23
    SemanticSearch is a study project with aim to create a tool to augument search capabilities of existing systems with semantic network-based algorithms
    Downloads: 0 This Week
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  • 24
    StrMatch is a simple java program, created for educational purposes, that allows user to test a great part of string matching algorithms. An intuitive user interface shows each algorithm step accurately...
    Downloads: 0 This Week
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  • 25
    The system searches synonyms (and related words) in Wikipedia. WikIDF generates index database of Wikipedia (for Russian, English, and German). The continuation of this project is "wikokit" at code.google.com
    Downloads: 0 This Week
    Last Update:
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