CSV VS JSON Schema
As of 30 October 2026, JSON Schema is named by 127 companies and CSV by 569; CSV skews to companies under 200 people (44% vs 34%), JSON Schema to companies over 1,000 (35% vs 32%).
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: CSV's script and mail records show on hundreds of thousands of small sites, JSON Schema rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- CSV: 2–200 employees
- 44%
- JSON Schema: 2–200 employees
- 34%
- CSV: 1,000+ employees
- 32%
- JSON Schema: 1,000+ employees
- 35%
- Postings per company, 90 days
- 1.7 · 1.9
- 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 | CSV | share | JSON Schema | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 9 | 2% | 5 | 4% | JSON Schema |
| 2-10 employees | 41 | 7% | 6 | 5% | CSV |
| 11-50 employees | 76 | 13% | 19 | 15% | even |
| 51-200 employees | 134 | 24% | 18 | 14% | CSV |
| 201-500 employees | 68 | 12% | 20 | 16% | JSON Schema |
| 501-1000 employees | 58 | 10% | 15 | 12% | even |
| 1001-5000 employees | 79 | 14% | 15 | 12% | CSV |
| 5001-10000 employees | 35 | 6% | 8 | 6% | even |
| 10,001+ employees | 69 | 12% | 21 | 17% | JSON Schema |
| Segment | CSV | share | JSON Schema | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 259 | 46% | 68 | 54% | JSON Schema |
| Business & finance services | 111 | 20% | 23 | 18% | even |
| Manufacturing & industry | 61 | 11% | 12 | 9% | even |
| Commerce & trade | 25 | 4% | 1 | 1% | CSV |
| Transport, logistics & rental | 19 | 3% | 2 | 2% | even |
| Health care | 16 | 3% | 3 | 2% | even |
| Utilities & infrastructure | 15 | 3% | 3 | 2% | even |
| Property & construction | 13 | 2% | – | – | outside top 12 |
| Public, community & associations | 12 | 2% | 5 | 4% | even |
| Consumer services & leisure | 12 | 2% | 2 | 2% | even |
| Media & content | 11 | 2% | 5 | 4% | JSON Schema |
| Automotive | 10 | 2% | 2 | 2% | even |
| Hospitality & travel | – | – | 1 | 1% | outside top 12 |
| Segment | CSV | share | JSON Schema | share | Leans |
|---|---|---|---|---|---|
| United States | 354 | 62% | 90 | 71% | JSON Schema |
| Germany | 48 | 8% | 1 | 1% | CSV |
| United Kingdom | 34 | 6% | 12 | 9% | JSON Schema |
| France | 24 | 4% | 1 | 1% | CSV |
| Canada | 23 | 4% | 4 | 3% | even |
| Spain | 11 | 2% | – | – | outside top 12 |
| Brazil | 9 | 2% | 3 | 2% | even |
| Australia | 8 | 1% | 4 | 3% | even |
| India | 7 | 1% | 2 | 2% | even |
| Poland | 6 | 1% | – | – | outside top 12 |
| Italy | 5 | 1% | – | – | outside top 12 |
| Austria | 4 | 1% | 1 | 1% | even |
| Mexico | – | – | 2 | 2% | outside top 12 |
| Singapore | – | – | 2 | 2% | outside top 12 |
| Denmark | – | – | 1 | 1% | outside top 12 |
| Segment | CSV | share | JSON Schema | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 371 | 29% | 129 | 42% | JSON Schema |
| Data & AI | 334 | 26% | 88 | 28% | JSON Schema |
| IT operations & business systems | 131 | 10% | 20 | 6% | CSV |
| Engineering (non-software) | 41 | 3% | 3 | 1% | CSV |
| Product, program & project management | 40 | 3% | 3 | 1% | CSV |
| Customer service & success | 25 | 2% | – | – | outside top 12 |
| Sales | 16 | 1% | 2 | 1% | even |
| Finance & accounting | 12 | 1% | – | – | outside top 12 |
| Marketing & communications | 12 | 1% | 1 | 0% | even |
| Quality, safety & environment | 12 | 1% | – | – | outside top 12 |
| Administration & office | 8 | 1% | 1 | 0% | even |
| General management & consulting | 6 | 0% | – | – | outside top 12 |
| Legal, compliance & risk | – | – | 4 | 1% | outside top 12 |
| Design & UX | – | – | 2 | 1% | outside top 12 |
| Arts media and entertainment | – | – | 1 | 0% | outside top 12 |
| Real estate and property | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using CSV →
Companies using JSON Schema →
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.
JSON Schema is named by 127 companies in job postings and CSV by 569; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/csv-vs-json-schema)
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.
CSV vs JSON Schema: questions
Which is more used, CSV or JSON Schema?
By companies naming it in their own job postings, CSV (569) over JSON Schema (127). By website-and-DNS footprint, JSON Schema (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses CSV?
44% of CSV companies have 2 to 200 employees, against 34% for JSON Schema. 32% of CSV companies have over 1,000 employees, against 35% for JSON Schema.
Do companies run both?
0 companies name both in their postings, usually CSV in marketing and JSON Schema 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.
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with the person who owns it
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