SQL to JSON Converter Online – Free & Fast SQL Query to JSON Tool
Convert your SQL queries or SQL files into clean, structured JSON instantly with our free online SQL to JSON Converter. Whether you’re working with SELECT, INSERT, or complex SQL Server statements using FOR JSON PATH or FOR JSON AUTO, this tool makes JSON formatting effortless. Just upload your .sql file or paste your SQL query — get accurate, ready-to-use JSON output within seconds.
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Frequently Asked Questions
Your common questions about SQL to JSON conversion — answered
It’s the process of transforming SQL query output (rows & columns) into JSON format — either as objects or arrays. Useful for APIs, web apps, and data exchange.
We support standard T-SQL syntax including FOR JSON AUTO, FOR JSON PATH, and WITHOUT_ARRAY_WRAPPER for SQL Server. Complex queries with nested joins, aliases, or subqueries typically work as long as they’re valid SQL.
Yes — you can upload .sql or .txt files or paste full SQL scripts. The tool will parse and convert them into JSON.
All conversion is done client-side in your browser. No data is sent to our servers — your SQL statements remain private and secure.
That behavior is controlled by PATH vs AUTO modes. AUTO auto-generates structure based on table joins/order. PATH gives more control. Use WITHOUT_ARRAY_WRAPPER to remove outer arrays if single objects.
NULL values are included as null if you use INCLUDE_NULL_VALUES, or omitted otherwise, depending on how the SQL clause is specified.