Compare · Programming languages

Java VS Ruby_

As of 30 October 2026, Ruby is named by 1,427 companies and Java by 12,188; Java skews to companies under 200 people (57% vs 56%), Ruby to companies over 1,000 (22% vs 21%).

As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

The website-and-DNS footprint is not comparable between a marketing suite and a CRM: Java's script and mail records show on hundreds of thousands of small sites, Ruby rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.

Java: 2–200 employees
57%
Ruby: 2–200 employees
56%
Java: 1,000+ employees
21%
Ruby: 1,000+ employees
22%
Postings per company, 90 days
6.2 · 3.0
Website or DNS footprint
0 · 0
12,188companies name Java
1,427companies name Ruby
1,073name both
75,515 · 4,213postings in 90 days, Java · Ruby
02 — Side by side

Who chooses which

Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.

By company size
SegmentJavashareRubyshareLeans
Self-employed1291%201%even
2-10 employees1,0078%967%even
11-50 employees2,94224%36626%even
51-200 employees2,93924%33924%even
201-500 employees1,62913%17913%even
501-1000 employees9968%1148%even
1001-5000 employees1,40612%17112%even
5001-10000 employees3693%483%even
10,001+ employees7716%947%even
By industry
SegmentJavashareRubyshareLeans
Technology & software6,79856%88562%Ruby
Business & finance services2,29919%25318%even
Manufacturing & industry1,0338%806%Java
Media & content3973%504%even
Consumer services & leisure3063%363%even
Utilities & infrastructure2462%111%even
Public, community & associations2382%342%even
Commerce & trade2332%282%even
Transport, logistics & rental1591%––outside top 12
Property & construction1491%91%even
Health care1391%111%even
Automotive1061%101%even
Hospitality & travel––111%outside top 12
By country
SegmentJavashareRubyshareLeans
United States6,33052%92365%Ruby
Germany1,1169%524%Java
United Kingdom8007%997%even
India6385%514%even
France4073%272%even
Canada2942%342%even
Italy2092%––outside top 12
Netherlands2092%211%even
Australia1541%232%even
Switzerland1531%––outside top 12
Poland1501%191%even
Sweden1441%––outside top 12
Japan––232%outside top 12
Singapore––151%outside top 12
United Arab Emirates––121%outside top 12
Postings by team (share of each tool's postings)
SegmentJavashareRubyshareLeans
Software engineering73,93163%3,80657%Java
Data & AI9,9999%2394%Java
IT operations & business systems9,1958%85213%Ruby
Engineering (non-software)3,2993%3876%Ruby
Product, program & project management1,3971%1042%even
Unclassified1,0001%841%even
Sales9071%1062%even
Customer service & success7081%1042%even
Finance & accounting5570%––outside top 12
Quality, safety & environment4460%180%even
Education & training2840%341%even
General management & consulting2510%––outside top 12
Design & UX––310%outside top 12
skilled trades and field service––270%outside top 12
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

Ruby is named by 1,427 companies in job postings and Java by 12,188; 1,073 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/java-vs-ruby)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
  • Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
  • SegmentsCountry, size and industry from the company profile built from its website.
  • Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
FAQ

Java vs Ruby: questions

Which is more used, Java or Ruby?

By companies naming it in their own job postings, Java (12,188) over Ruby (1,427). By website-and-DNS footprint, Ruby (0 vs 0), because its scripts and mail records sit on many small company sites.

Who chooses Java?

57% of Java companies have 2 to 200 employees, against 56% for Ruby. 21% of Java companies have over 1,000 employees, against 22% for Ruby.

Do companies run both?

1,073 companies name both in their postings, usually Java in marketing and Ruby in sales, or during a migration.

Where do these numbers come from?

From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.

Companies and people

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