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ajv-validator/ajv

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The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)

11 mentions on Hacker News by 8 people: 4 stories, 7 comments · first 2015-06-19 · latest 2025-12-02

Mentions per year 11 mentions · busiest year 2015 (3)
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  1. https://github.com/ajv-validator/ajv 138 million downloads from npm in the last week. Yes, you can validate your JSON
    comment by socalgal2 · 2025-12-02 · in Why I stopped using JSON for my APIs
  2. It's common to validate in JS land as well https://github.com/ajv-validator/ajv
    comment by socalgal2 · 2025-12-02 · in Why I stopped using JSON for my APIs
  3. …https://github.com/suguru03/neo-async https://github.com/webpack/schema-utils https://github.com/ajv-validator/ajv https://github.com/epoberezkin/fast-deep-equal https://github.com/fastify/fast-uri https://github.com/epoberezkin/json-sc
    comment by CMay · 2025-09-20 · in Less is safer: Reducing the risk of supply chain attacks
  4. …of all NPM packages that (transitively) depend on ajv. Here's the GitHub issue from back then: https://github.com/ajv-validator/ajv/issues/1202
    comment by Timon3 · 2024-10-10 · in Zod: TypeScript-first schema validation with static type inference
  5. ▲ 3
    Ajv JSON Schema Validator
    story by throwawaybutwhy · 2021-09-11 · 1 comment
  6. JSON schema and ajv are my go to tools for this: https://github.com/epoberezkin/ajv
    comment by tckr · 2020-04-16 · in Show HN: Verify JSON using minimal schema
  7. …type guard[2] to take full advantage of TypeScript) in the same module for easier maintenance. [1] https://github.com/epoberezkin/ajv [2] https://www.typescriptlang.org/docs/handbook/advanced-types....
    comment by yawaramin · 2020-02-01 · in TypeScript’s quirks: How inconsistencies make the language more complex
  8. I've also used AJV before. https://github.com/epoberezkin/ajv
    comment by Klathmon · 2018-07-15 · in V8n – Fluent validation library for JavaScript
  9. ▲ 1
    Show HN: The fastest JSON-schema validator Ajv now supports version 5 keywords
    story by epoberezkin · 2015-12-12 · 1 comment
  10. ▲ 4
    Show HN: JSON-Schema validator Ajv – the fastest and the most compliant
    story by epoberezkin · 2015-09-11 · 1 comment
  11. ▲ 1
    Show HN: The new fastest JSON Schema validator – ajv
    story by epoberezkin · 2015-06-19 · 1 comment