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Top 6 TypeScript Ajv Projects
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ajv
The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)
Project mention: Show HN: A lightweight LLM proxy to get structured results from most LLMs | news.ycombinator.com | 2025-02-27 -
SurveyJS
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Add the SurveyJS white-label form builder to your JavaScript app (React/Angular/Vue3). Build complex JSON forms without coding. Fully customizable, works with any backend, perfect for data-heavy apps. Learn more.
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My hunch was that Zod v4 started using eval (or, more precisely, JIT compilation via new Function) for validation. This isnβt a bad thing β libraries like TypeBox, ArkType, and even Sury use similar techniques for speed.
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Project mention: Why your MCP server fails (how to make 100% successful MCP server) | dev.to | 2025-04-22
Your TypeScript class type would be analyzed by typia in the compilation level, so that matched AI function calling schema would be automatically generated.
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resolvers
π Validation resolvers: Yup, Zod, Superstruct, Joi, Vest, Class Validator, io-ts, Nope, computed-types, typanion, Ajv, TypeBox, ArkType, Valibot, effect-ts, VineJS and Standard Schema
Weβll be using Zod and drizzle-zod for schema validations in forms. Zod is already packaged on the demo application along withReact Hook Form and Zod resolver for React Hook Form. So, go ahead and install drizzle-zod. And also drizzle-seed that is Drizzle's handy package for seeding in development:
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remark-lint-frontmatter-schema
Validate your Markdown frontmatter data against a JSON schema β remark-lint rule plugin
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Link to the project: https://github.com/vitalics/ajv-ts
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript Ajv discussion
TypeScript Ajv related posts
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Zod v4: 17x Slower? (and Why You Should Care) π¦
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Why your MCP server fails (how to make 100% successful MCP server)
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JavaScript schema library from the Future π§¬
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Bun is up to 20x slower than NodeJS in logic operations
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Fixing and Validating JSON with Ease: An In-Depth Guide
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LLM Function calling A.I. Chatbot from OpenAPI Document
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typia μ¬μ©λ²
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A note from our sponsor - Civic Auth
www.civic.com | 16 May 2025
Index
What are some of the best open-source Ajv projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | ajv | 14,199 |
| 2 | typebox | 5,642 |
| 3 | typia | 5,144 |
| 4 | resolvers | 1,982 |
| 5 | remark-lint-frontmatter-schema | 58 |
| 6 | ajv-ts | 48 |
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