Solr
Apache Software Foundation, Wilmington, Delaware, United StatesSolr is an open-source enterprise search server built on the Apache Lucene information retrieval library that provides full-text, faceted, and geospatial search over HTTP APIs.
It supports advanced query parsers and hit highlighting, schema-based and schemaless indexing, distributed indexing and fault-tolerant search with SolrCloud, and parsing of rich documents such as PDFs, Microsoft Word, Microsoft Excel, PowerPoint, HTML, and OpenDocument formats.
According to our data, Solr is the third most popular site search software solution on the web.
It has 8.1% of the site search market share and is present on 0.2% of all websites.
- 🏠 Website
- </> Source code
- 👨👩👦👦 Community
Reddit💸 Pricing
Solr is available for free.
📊 Rankings and Market Share
- Site Search
- Rank: 3
- Market share: 8.1%
🏆 Solr Awards
- 🥇 Most popular in Germany in the Site Search category.
- 🥇 Most popular in the United Arab Emirates in the Site Search category.
- 🥇 Most popular in Austria in the Site Search category.
- 🥇 Most popular in Portugal in the Site Search category.
- 🥈 Second most popular in Australia in the Site Search category.
- 🥈 Second most popular in Belgium in the Site Search category.
- 🥈 Second most popular in Argentina in the Site Search category.
- 🥉 Third most popular in the United States in the Site Search category.
- 🥉 Third most popular in Switzerland in the Site Search category.
- 🥉 Third most popular in Mexico in the Site Search category.
⚡ Sites Using Solr
We have data on 5,213 websites that use the Solr site search software solution. Here is a list of some of the top ranked ones.
The highest rated site using Solr is 
pinterest.com.
| # | Website | Rank | Country | Language |
|---|---|---|---|---|
| 1 | pinterest.com |
#15 | English | |
| 2 |  stackoverflow.com |
#101 | English | |
| 3 | #104 | English | ||
| 4 | #267 | United States | English | |
| 5 | #282 | United States | American English | |
| 6 | #468 | United States | English | |
| 7 | #992 | United States | English | |
| 8 | #1,223 | United Kingdom | English | |
| 9 | #1,281 | United States | English | |
| 10 | #1,344 | United States | English | |
| 11 | #1,357 | United States | American English | |
| 12 | #1,510 | English | ||
| 13 | #1,518 | United Kingdom | English | |
| 14 | #1,589 | United States | English | |
| 15 | #1,765 | United States | American English | |
| 16 | #1,833 | Argentina | Spanish | |
| 17 | #1,880 | United Kingdom | English | |
| 18 | #1,890 | United Kingdom | English | |
| 19 | #1,974 | Italy | Italian | |
| 20 | #2,039 | English |
📈 Usage Statistics
Most of the sites that use Solr:
- are located in the United States
- have content in English
- use the .com domain extension
- fall into the Business category.
Most of the sites using Solr are from the United States, Germany, and the United Kingdom.
- United States 26.4%
- Germany 14%
- United Kingdom 6.8%
- France 5.2%
- Australia 4.6%
- Netherlands 3.4%
- Canada 3%
- United Arab Emirates 2.4%
- Denmark 2.3%
- Other 31.9%
Most Solr users speak English, German, or French.
- English 60.6%
- German 12.9%
- French 4.7%
- Spanish 4.3%
- Dutch 3%
- Portuguese 2.2%
- Italian 1.3%
- Danish 1.2%
- Chinese 1.1%
- Other 8.7%
The Solr site search software solution is especially popular on .com, .org, and .de top-level domains.
- .com 36.6%
- .org 10.1%
- .de 9.2%
- .fr 2.7%
- .com.au 2.5%
- .co.uk 2.3%
- .ca 2%
- .nl 2%
- .at 1.3%
- Other 31.3%
The primary market segments for websites utilizing Solr include business, marketing and merchandising, and health.
- Business 23.7%
- Marketing/Merchandising 7.8%
- Health 7.2%
- Education/Reference 7.1%
- Finance/Banking 5.3%
- General News 4.4%
- Online Shopping 4.3%
- Government/Military 4.1%
- Entertainment 4%
- Other 32.1%
🕵️ Similar Technologies
These are some of the best Solr alternatives.
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What is the company behind Solr?
Solr is owned by the Apache Software Foundation, headquartered in Wilmington, Delaware, United States.
Is Solr free?
Yes, it is a free site search software solution.
It is also open source, and you can find its code on 
GitHub.
Which country uses Solr the most?
The majority of Solr users are from the United States.
Who uses Solr?
According to our data, Solr is used on thousands of sites, including such established ones as pinterest.com, stackoverflow.com, and washingtonpost.com.
Is Solr used on government websites?
Yes, for example, it is used by ct.gov. Overall, we found Solr on 24 government sites in the United States.
Do academic institutions use Solr?
Yes. The most notable of these is yale.edu. In total, we know of 56 academic websites in the United States that use Solr.
How does Solr compare to its competitors?
Solr is one of the most popular site search software, second only to 
Google Programmable Search Engine and 
Algolia.
What are the alternatives to Solr?
Alternatives and possible competitors to Solr may include 
Elasticsearch, DataparkSearch, and
Meilisearch.
👉 See Also
- ✨ Related Technologies
- 💼 All technologies from Apache Software Foundation
Microsoft Office
Microsoft Word
OpenOffice