Best Free Online Developer Tools to Use in 2026
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Aug 08, 2026
SQL to JSON Converter
Convert SQL INSERT statements to JSON format — paste SQL and get clean JSON array output instantly
- Home
- /
- SQL to JSON Converter
Options
JSON Output
[
{
"id": 1,
"name": "John Doe",
"email": "john@example.com"
}
]Rows
0
Columns
0
SQL Type
-
Size
0 B
What Is SQL to JSON Conversion?
SQL to JSON conversion transforms SQL statements — particularly INSERT statements — into JSON format, producing an array of objects where column names become keys and row values become values. This is essential when you need to move database records into modern JSON-based APIs, seed NoSQL databases, generate fixture data for tests, feed data into ETL pipelines, or prepare payloads for serverless functions. The converter parses SQL INSERT statements to extract column names and row values, then builds strongly typed JSON with automatic number, boolean, and NULL detection. It also supports CREATE TABLE statements for schema extraction and pasted SELECT output for tabular data. With pretty or minified output and configurable indentation, you can match the exact JSON style your target system expects.
How to Use This Converter
- Paste your SQL — Enter INSERT statements, SELECT results, or CREATE TABLE statements.
- Configure options — Choose pretty or minified output, indentation, and toggle number/boolean parsing.
- Review the JSON — The converted JSON array updates in real time as you type or change options.
- Copy or download — Click Copy to copy to clipboard, or Download to save as a
.jsonfile.
Supported SQL Formats
INSERT Statements
Parse INSERT INTO table (col1, col2) VALUES (val1, val2) to produce a JSON array of objects. Supports multi-row inserts, quoted strings, NULL values, numbers, and booleans.
SELECT Results
Paste the output of a SELECT query (column names followed by rows of tabular data) to get a JSON array of objects.
CREATE TABLE Statements
Parse CREATE TABLE to generate JSON describing each column and its type.
FAQs
Is my data sent to a server?
No. All processing is performed locally in your browser. Your data never leaves your device.
What SQL syntax is supported?
The parser handles MySQL/MariaDB/PostgreSQL INSERT syntax, standard CREATE TABLE, and simple SELECT output. Nested queries and complex expressions are not supported.
How are NULL values handled?
SQL NULL values are converted to the JSON null literal, while quoted NULL strings remain as the string "NULL".
Are numbers converted automatically?
Yes. When Parse numbers & booleans is enabled, unquoted numeric literals become JSON numbers, unquoted TRUE/FALSE become booleans, and NULL becomes null. Disable the option to keep every value as a string.
Is this tool free to use?
Yes. This tool is completely free with no usage limits or registration required.
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