What Is a SQL to JSON Converter?
A SQL to JSON converter parses SQL INSERT statements and extracts the data into a JSON array of objects. Each INSERT row becomes a JSON object with column names as keys and cell values properly typed (numbers, booleans, nulls, and strings). This tool runs 100% in your browser — your data is never uploaded to any server.
It supports file upload, drag-and-drop, URL import, configurable indentation, smart value coercion (NULL, booleans, integers, floats), copy to clipboard, and instant download.
How to Use This Tool
Add Your SQL
Paste SQL INSERT statements into the input area, click Upload to select a .sql file, drag and drop a file, or use URL Import to fetch SQL from a remote address.
Convert to JSON
Click Convert to JSON to parse all INSERT statements. Column names become JSON keys and values are automatically typed (numbers, booleans, nulls, strings).
Adjust Formatting
Choose your preferred indentation (2 spaces, 4 spaces, or minified) in the output toolbar. The object count shows how many rows were parsed.
Copy or Download
Copy the generated JSON to your clipboard or download it as a .json file. Review the output to verify all values were parsed correctly.
Features Explained
INSERT Statement Parsing
▼
The parser handles standard SQL INSERT INTO ... (columns) VALUES (values) syntax. It correctly processes quoted strings (single and double), escaped quotes, nested parentheses, and multiple INSERT statements in a single input.
Smart Value Coercion
▼
Values are automatically typed: NULL becomes JSON null, TRUE/FALSE become booleans, integers and floats become numbers, and quoted strings become JSON strings. Single quotes within strings are properly unescaped.
Configurable Indentation
▼
Choose between 2-space indentation (default), 4-space indentation, or minified output with no whitespace. The setting is preserved across sessions via localStorage.
File Upload & Drag-and-Drop
▼
Upload a .sql or .txt file using the Upload button, or drag and drop a file directly onto the input area. The file contents are loaded into the textarea for conversion.
URL Import
▼
Click URL Import to fetch a SQL file from any remote address. The request goes directly from your browser to the target server — no intermediary.
Copy & Download
▼
Copy the entire generated JSON to your clipboard with one click (shows Copied! for 1.5 seconds), or download it as a .json file.
LocalStorage Persistence
▼
Your input SQL, generated output, and indentation setting are automatically saved to your browser's local storage. If you close the tab or refresh the page, your data will be restored.
Who Is This Tool For?
Backend Developers
Convert SQL seed data or migration scripts into JSON for use in API responses, test fixtures, or configuration files.
Data Engineers
Transform SQL dumps into JSON for loading into document databases, message queues, or data pipelines.
Frontend Developers
Convert database query results into JSON format for mocking API responses during development.
Database Administrators
Export SQL INSERT data as JSON for sharing with teams that work with JSON-based systems.
QA Engineers
Convert SQL test data into JSON fixtures for API testing and integration test suites.
Students & Learners
Understand how SQL INSERT data maps to JSON objects and learn about data type conversion between formats.
Value Type Mapping
| SQL Value | JSON Type | Example |
|---|---|---|
| NULL | null | null |
| TRUE / FALSE | boolean | true, false |
| Integer (42, -7) | number | 42 |
| Float (3.14) | number | 3.14 |
| 'quoted string' | string | "Alice" |
Tips for SQL to JSON Conversion
Use standard INSERT syntax
The parser expects INSERT INTO table (col1, col2) VALUES (val1, val2) format. Column names in the parentheses become JSON keys.
Check value types
Numbers and booleans are automatically detected. If a value should be a string but looks like a number, make sure it's quoted in the SQL.
Handle special characters
Escaped single quotes ('') in SQL strings are properly converted to single quotes in JSON strings.
Use minified for APIs
Select Minified indentation when the JSON will be used in API requests or stored in databases where whitespace is unnecessary.
Multiple tables supported
If your SQL contains INSERT statements for different tables, all rows are combined into a single JSON array. Consider splitting by table if needed.
Review NULL handling
SQL NULL values become JSON null. If your downstream system expects empty strings instead, you may need to post-process the output.
Privacy & Security
This tool runs 100% in your browser. Your SQL data is never uploaded to any server. All parsing and conversion happens locally using JavaScript.
Your input and output are saved only in your browser's local storage so they persist when you refresh the page. You can clear them at any time using the “Clear” button. No cookies are used, no analytics track your data content, and no third-party services have access to what you convert.