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ata-validator

ata-validator

Fast, correct JSON Schema validation for JavaScript

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ata is a JSON Schema validator for JavaScript. It passes the whole official test suite and ranks first in all six validation and parsing tables on schemabenchmarks.dev. Errors say what is wrong and where, down to line and column. It runs where code generation is blocked, such as Cloudflare Workers, and its pattern engine is linear-time, so one crafted string cannot stall a server. With the bundler plugin, new Validator(schema) compiles away to a few KB.

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