Apache Lucene Review

Apache Lucene
Our score: 9.6 User satisfaction: 100%

What is Apache Lucene?

Apache Lucene is an ultra-fast, powerful, and full-featured text search engine library developed to empower mobile applications, websites, and solutions with search capabilities so they can deliver a seamless search experience. It is a part of an open source project initiated by Apache Software Foundation, a community of open source software developers that are committed to building and enhancing innovative technologies.

Written in Java, Apache Lucene functions as an indexing and search technology that allows the implementation of full-text search capabilities and efficient indexing processes on applications and websites that are running on multiple platforms.

Apache Lucene is equipped with search algorithms that ensure that app users and site visitors are able to find the exact content they are looking for, permitting users to enable and support various types of search queries, rank and group search results, apply flexible faceting, use fielded searching, and more.

Last but not least, Apache Lucene is using the Apache License, an open source license that allows users to use, modify, and distribute the  software for business purposes or open source development projects.

Overview of Apache Lucene Benefits

Incremental Indexing

As an indexing technology, Apache Lucene offers a feature called incremental indexing. This feature allows users to add, change, or remove documents in their index without the need to re-index all contents within the index. By using timestamps, the index will identify the documents that were newly created, modified, or deleted, and what will be re-indexed are only those contents related to those documents. This feature is very advantageous for users who are managing a large database and who need to change their data often like network publishers.

Scalable And High-Performance Indexing

The indexing capability of Apache Lucene is scalable and has a high performance. In fact, it lets users process a large number of documents and index them in less time. This is because the search engine library supports the indexing of over 50 GB of documents or data within an hour. In addition, as they perform indexing, they only need to allocate a minimal amount of RAM for such task which is 1MB heap.

Handle Sophisticated Searches And Generate Accurate Results

Apache Lucene makes it easy for searchers to find any information or content they need. Through the aid of its powerful, accurate, and efficient search algorithms, users will be able to precisely deliver whatever searchers are looking for. This makes the search engine library a truly world-class search technology that can handle sophisticated searches and generate search results in an advanced and modern way.

Enable Fielded Search

For example, accurate searching can be implemented by enabling a fielded search functionality on websites and applications. Basically, searchers are looking for pieces of information that are stored in a database and are defined and labelled in the search index during the indexing process. These pieces of information are organized in specific areas called fields. The most common types of fields are author, title, subject, and abstract fields. For example, the author field contains the names of authors of books or articles, the titles of these books or articles are found in the title field, words or terms used in the books or articles are organized in the subject field, and the overviews of the authors’ works can be accessed from the abstract field.

In a basic type of search, the database normally finds information from all of the fields after a searcher makes a query. Thus, if fielded searching is not enabled, someone who is searching for a particular article will view short results that contain the name of the author of the article but he or she will also see articles that mentioned the author and discussed the work of the author. Thus, field searching is a way of instructing the database to look for information only from a specific area or field so searches won’t be overloaded with pieces of information which make it difficult for them to find the information they need.

Deliver Relevant Content Through Search Results Ranking

Apache Lucene also enables users to rank their search results so that searchers will be able to see first the contents that are most relevant to what they are looking for. In addition, the search engine library allows them to use different ranking models as they rank their search results which include Vector Space Model and Okapi BM25.

Search And Merge Data From Multiple Indices

Apache Lucene has a multi-index searching capability. With this capability, pieces of information and content are searched on multiple indices all at once. Interestingly, whatever data it gathers from each index can be combined together, generating merged search results where searches can dynamically view how pieces of information are being used in various scenarios or conditions.

Overview of Apache Lucene Features

  • Scalable, High-Performance Indexing
  • Over 150GB/Hour on Modern Hardware
  • Small RAM Requirements – Only 1 MB Heap
  • Incremental Indexing
  • Powerful, Accurate and Efficient Search Algorithms
  • Many Powerful Query Types
  • Fielded Searching
  • Sorting by Any Field
  • Ranked Searching
  • Pluggable Ranking Models
  • Flexible Faceting, Highlighting, Joins and Result Grouping
  • Multiple-Index Searching with Merged Results
  • Fast, Memory-Efficient and Typo-Tolerant Suggesters
  • Configurable Storage Engine (Codecs)
  • Cross-Platform Solution

Apache Lucene Position In Our Categories

Knowing that businesses have particular business-related demands, it is logical they abstain from selecting a one-size-fits-all, ”best” software solution. Needless to say, it would be hard to try to come across such an app even among popular software products. The sensible thing to do would be to take note of the numerous chief factors which call for a investigation including crucial features, price terms, skill aptitude of staff members, organizational size, etc. Thereafter, you must do the research systematically. Browse over these Apache Lucene review articles and check out the other solutions in your shortlist more closely. Such all-encompassing research ensure you circumvent ill-fitting applications and buy the one which meets all the benefits your company requires.

Position of Apache Lucene in our main categories:


Apache Lucene is one of the top 5 Site Search Solutions products

If you are interested in Apache Lucene it might also be sensible to investigate other subcategories of Site Search Solutions listed in our database of SaaS software reviews.

Companies have different needs and requirements and no software application can be perfect in such a condition. It is useless to try to find a perfect out-of-the-box software app that meets all your business requirements. The intelligent thing to do would be to modify the system for your specific wants, worker skill levels, budget, and other elements. For these reasons, do not hasten and invest in well-publicized trendy solutions. Though these may be widely used, they may not be the perfect fit for your unique requirements. Do your groundwork, check out each short-listed application in detail, read a few Apache Lucene Site Search Solutions reviews, contact the vendor for clarifications, and finally choose the product that offers what you require.

How Much Does Apache Lucene Cost?

Apache Lucene Pricing Plans:

Free Trial

Apache Lucene


Apache Lucene is delivered based on the Apache License, a free and liberal software license that allows you to use, modify, and share any Apache software product for personal, commercial, or open source development purposes for free. Thus, you can use Apache Lucene with no enterprise pricing plan to worry about.

User Satisfaction

Positive Social Media Mentions 106
Negative Social Media Mentions 0

We realize that when you make a decision to buy Site Search Solutions it’s important not only to see how experts evaluate it in their reviews, but also to find out if the real people and companies that buy it are actually satisfied with the product. That’s why we’ve created our behavior-based Customer Satisfaction Algorithm™ that gathers customer reviews, comments and Apache Lucene reviews across a wide range of social media sites. The data is then presented in an easy to digest form showing how many people had positive and negative experience with Apache Lucene. With that information at hand you should be equipped to make an informed buying decision that you won’t regret.


Technical details

Devices Supported

  • Windows
  • Linux
  • Mac
  • Web-based


  • Cloud Hosted
  • Open API

Language Support

  • English
  • Chinese
  • German
  • Hindi
  • Japanese
  • Spanish
  • French
  • Russian
  • Italian
  • Dutch
  • Portugese
  • Polish
  • Turkish
  • Swedish

Pricing Model

  • Free

Customer Types

  • Small Business
  • Large Enterprises
  • Medium Business
  • Freelancers

What Support Does This Vendor Offer?

  • email
  • phone
  • live support
  • training
  • tickets

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What are Apache Lucene pricing details?

Apache Lucene Pricing Plans:

Free Trial

Apache Lucene


Apache Lucene is delivered based on the Apache License, a free and liberal software license that allows you to use, modify, and share any Apache software product for personal, commercial, or open source development purposes for free. Thus, you can use Apache Lucene with no enterprise pricing plan to worry about.

What integrations are available for Apache Lucene?

Apache Lucene integrates with the following search applications and third-party tools:

  • Apache Solr
  • GeodeApache Nutch
  • Pivotal GemFire
  • Apache Solr
  • Babelnet
  • Compass
  • CrateDB
  • DocFetcher
  • Elasticsearch
  • Kinosearch
  • Swiftype

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Reviewed By Jenny Chang
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