CSV Validator

Paste a JSON Schema, drop in a CSV, and validate every row entirely in your browser — nothing is uploaded anywhere.

This page is an interactive tool that runs entirely in your browser, so it needs JavaScript enabled to do anything. Nothing you enter is ever sent to a server.

JSON Schema

Supported keywords: type (string, number, integer, boolean), enum, minLength/maxLength, minimum/maximum, pattern, and format (email, uri, date, date-time).

CSV file

Drop a CSV file here, or click to browse