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Onna centralizes organizations' most common information platforms like Confluence, Slack, Gmail, Drive, and Dropbox.

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Open-Source Alternatives to Onna

Apache Solr

Product categories

Custom Search Custom Search Engine Search API Search Engine

Summary

The top open-source alternatives to Onna are Apache Solr. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.
  1. Apache Solr Landing Page
    Apache Solr Landing Page
    1

    Apache Solr

    Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and...
    Pricing:
    • Open Source

    #Custom Search Engine #Custom Search #Search Engine 17 social mentions

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