Protocol Buffers VS XML
As of 30 October 2026, XML is named by 3,931 companies and Protocol Buffers by 431; Protocol Buffers skews to companies under 200 people (46% vs 47%), XML to companies over 1,000 (30% vs 26%).
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: Protocol Buffers's script and mail records show on hundreds of thousands of small sites, XML rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Protocol Buffers: 2–200 employees
- 46%
- XML: 2–200 employees
- 47%
- Protocol Buffers: 1,000+ employees
- 26%
- XML: 1,000+ employees
- 30%
- Postings per company, 90 days
- 2.1 · 2.7
- Website or DNS footprint
- 0 · 0
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | Protocol Buffers | share | XML | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 6 | 1% | 34 | 1% | even |
| 2-10 employees | 37 | 9% | 241 | 6% | Protocol Buffers |
| 11-50 employees | 61 | 14% | 750 | 19% | XML |
| 51-200 employees | 99 | 23% | 845 | 21% | even |
| 201-500 employees | 73 | 17% | 526 | 13% | Protocol Buffers |
| 501-1000 employees | 41 | 10% | 339 | 9% | even |
| 1001-5000 employees | 65 | 15% | 620 | 16% | even |
| 5001-10000 employees | 13 | 3% | 177 | 5% | even |
| 10,001+ employees | 36 | 8% | 399 | 10% | even |
| Segment | Protocol Buffers | share | XML | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 205 | 48% | 1,932 | 49% | even |
| Business & finance services | 79 | 18% | 800 | 20% | XML |
| Manufacturing & industry | 77 | 18% | 411 | 10% | Protocol Buffers |
| Media & content | 18 | 4% | 119 | 3% | even |
| Transport, logistics & rental | 12 | 3% | 80 | 2% | even |
| Commerce & trade | 9 | 2% | 112 | 3% | even |
| Utilities & infrastructure | 8 | 2% | 80 | 2% | even |
| Public, community & associations | 6 | 1% | 94 | 2% | even |
| Consumer services & leisure | 6 | 1% | 87 | 2% | even |
| Automotive | 4 | 1% | 44 | 1% | even |
| Health care | 3 | 1% | 73 | 2% | even |
| Hospitality & travel | 2 | 0% | – | – | outside top 12 |
| Property & construction | – | – | 57 | 1% | outside top 12 |
| Segment | Protocol Buffers | share | XML | share | Leans |
|---|---|---|---|---|---|
| United States | 288 | 67% | 2,177 | 55% | Protocol Buffers |
| United Kingdom | 32 | 7% | 265 | 7% | even |
| Germany | 25 | 6% | 284 | 7% | even |
| France | 9 | 2% | 116 | 3% | even |
| India | 7 | 2% | 222 | 6% | XML |
| Canada | 6 | 1% | 119 | 3% | even |
| Japan | 5 | 1% | – | – | outside top 12 |
| Poland | 5 | 1% | 60 | 2% | even |
| Sweden | 5 | 1% | 34 | 1% | even |
| Brazil | 4 | 1% | 34 | 1% | even |
| Switzerland | 4 | 1% | 36 | 1% | even |
| Netherlands | 4 | 1% | 72 | 2% | even |
| Australia | – | – | 64 | 2% | outside top 12 |
| Segment | Protocol Buffers | share | XML | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 940 | 75% | 9,889 | 52% | Protocol Buffers |
| Data & AI | 107 | 9% | 945 | 5% | Protocol Buffers |
| Engineering (non-software) | 34 | 3% | 392 | 2% | even |
| IT operations & business systems | 30 | 2% | 2,641 | 14% | XML |
| Product, program & project management | 5 | 0% | 441 | 2% | even |
| Customer service & success | 4 | 0% | 308 | 2% | even |
| Marketing & communications | 4 | 0% | 272 | 1% | even |
| Finance & accounting | 2 | 0% | 120 | 1% | even |
| Sales | 2 | 0% | 161 | 1% | even |
| Arts media and entertainment | 1 | 0% | 353 | 2% | even |
| Construction and civil | 1 | 0% | – | – | outside top 12 |
| Unclassified | 1 | 0% | 72 | 0% | even |
| Quality, safety & environment | – | – | 77 | 0% | outside top 12 |
The companies behind each column
Companies using Protocol Buffers →
Companies using XML →
api specs data formats ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
XML is named by 3,931 companies in job postings and Protocol Buffers by 431; 35 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/protocol-buffers-vs-xml)
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.
Protocol Buffers vs XML: questions
Which is more used, Protocol Buffers or XML?
By companies naming it in their own job postings, XML (3,931) over Protocol Buffers (431). By website-and-DNS footprint, XML (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Protocol Buffers?
46% of Protocol Buffers companies have 2 to 200 employees, against 47% for XML. 26% of Protocol Buffers companies have over 1,000 employees, against 30% for XML.
Do companies run both?
35 companies name both in their postings, usually Protocol Buffers in marketing and XML 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.
Get either list your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every company on either tool,
with the person who owns it
Filter on Protocol Buffers or XML. Start free, no card.