JSON Schema alternatives
As of 4 November 2026, 39 api specs data formats are named by companies instead of JSON Schema: JSON by 6,396 companies, XML by 5,264, Model Context Protocol by 4,892.
As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- JSON Schema, companies in postings
- 169
- Most used alternative
- JSON · 6,396
- Fastest hiring, 90 days
- JSON
- Alternatives ranked
- 39
- Catalogue
- T-1.0.1-prov
api specs data formats companies choose instead of JSON Schema
Companies naming each tool in their own postings, and postings in the last 90 days. Bars are relative to the category leader.
| # | Alternative | Companies | companies | vs JSON Schema | postings, 90 d | Compare |
|---|---|---|---|---|---|---|
| 1 | JSONEcma International | 6,396 | 3785% | 19,737 | JSON Schema vs JSON → | |
| 2 | XMLW3C | 5,264 | 3115% | 12,841 | JSON Schema vs XML → | |
| 3 | Model Context ProtocolAnthropic | 4,892 | 2895% | 16,002 | JSON Schema vs Model Context Protocol → | |
| 4 | GraphQLGraphQL Foundation | 4,089 | 2420% | 12,076 | JSON Schema vs GraphQL → | |
| 5 | SOAPW3C | 3,661 | 2166% | 10,243 | JSON Schema vs SOAP → | |
| 6 | gRPCCloud Native Computing Foundation | 1,753 | 1037% | 4,571 | JSON Schema vs gRPC → | |
| 7 | OpenAPIOpenAPI Initiative | 1,432 | 847% | 3,245 | JSON Schema vs OpenAPI → | |
| 8 | YAMLYAML Language Development Team | 1,029 | 609% | 2,569 | JSON Schema vs YAML → | |
| 9 | Microsoft GraphMicrosoft | 942 | 557% | 2,115 | JSON Schema vs Microsoft Graph → | |
| 10 | ODataOASIS | 844 | 499% | 3,073 | JSON Schema vs OData → | |
| 11 | XSLTW3C | 820 | 485% | 1,501 | JSON Schema vs XSLT → | |
| 12 | CSVIETF | 782 | 463% | 1,180 | JSON Schema vs CSV → | |
| 13 | SAP IDocSAP | 722 | 427% | 2,746 | JSON Schema vs SAP IDoc → | |
| 14 | Apache ParquetApache Software Foundation | 690 | 408% | 1,246 | JSON Schema vs Apache Parquet → | |
| 15 | Protocol BuffersGoogle | 566 | 335% | 1,102 | JSON Schema vs Protocol Buffers → | |
| 16 | Agent2Agent (A2A) ProtocolLinux Foundation | 443 | 262% | 1,572 | JSON Schema vs Agent2Agent (A2A) Protocol → | |
| 17 | PDFAdobe | 405 | 240% | 839 | JSON Schema vs PDF → | |
| 18 | ANSI X12ASC X12 | 371 | 220% | 761 | JSON Schema vs ANSI X12 → | |
| 19 | 337 | 199% | 585 | JSON Schema vs Markdown → | ||
| 20 | 291 | 172% | 551 | JSON Schema vs XML Schema (XSD) → | ||
| 21 | Apache AvroApache Software Foundation | 280 | 166% | 560 | JSON Schema vs Apache Avro → | |
| 22 | ISO 20022ISO | 272 | 161% | 763 | JSON Schema vs ISO 20022 → | |
| 23 | WSDLW3C | 256 | 151% | 511 | JSON Schema vs WSDL → | |
| 24 | UN/EDIFACTUnited Nations | 253 | 150% | 406 | JSON Schema vs UN/EDIFACT → | |
| 25 | RDFW3C | 221 | 131% | 813 | JSON Schema vs RDF → | |
| 26 | 216 | 128% | 703 | JSON Schema vs Web Ontology Language → | ||
| 27 | H.264ITU-T / ISO | 160 | 95% | 327 | JSON Schema vs H.264 → | |
| 28 | XBRLXBRL International | 152 | 90% | 294 | JSON Schema vs XBRL → | |
| 29 | RedfishDMTF | 137 | 81% | 661 | JSON Schema vs Redfish → | |
| 30 | H.265ITU-T | 126 | 75% | 244 | soon | |
| 31 | RSSRSS Advisory Board | 122 | 72% | 321 | soon | |
| 32 | Apache ORCApache Software Foundation | 118 | 70% | 235 | soon | |
| 33 | tRPCtRPC contributors | 106 | 63% | 188 | soon | |
| 34 | RAMLMuleSoft | 105 | 62% | 187 | soon | |
| 35 | Schema.orgSchema.org | 103 | 61% | 148 | soon | |
| 36 | JSON-LDW3C | 99 | 59% | 146 | soon | |
| 37 | DITAOASIS | 96 | 57% | 197 | soon | |
| 38 | YANGIETF | 89 | 53% | 286 | soon | |
| 39 | OpenUSDAlliance for OpenUSD | 88 | 52% | 291 | soon |
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39 api specs data formats are named by companies instead of JSON Schema: JSON by 6,396 companies, XML by 5,264, Model Context Protocol by 4,892, measured from their own job postings. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/json-schema/alternatives)
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 →
- RankingCompanies whose own postings name the tool as the team's system, from the Breaknorm technology catalogue T-1.0.1-prov. Editions are folded into their parent product.
- 90-day postingsOpen postings first seen or posted in the last 90 days that name the tool.
- Not includedRatings, prices, feature claims, sponsored positions.
JSON Schema alternatives: questions
What is the most used alternative to JSON Schema?
JSON: 6,396 companies name it in their own job postings, against 169 for JSON Schema.
How is this list ranked?
By the number of companies whose own postings name the tool as the team's system (Breaknorm technology catalogue T-1.0.1-prov), then by postings in the last 90 days. No ratings, no vendor input, no sponsored positions.
Does this say which is better?
No. It says who uses what, by company size, industry and country, so you can see which tools companies like yours choose. For features and prices, read the vendors.
Can I get the companies on any of these?
Yes: click the tool, see the first 20 companies, and sign up for the full list with verified e-mails. Counting is free.
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Every company on JSON Schema
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