SQL to JSON Converter | Withdata DataFileConverter

Why Choose Withdata SQL to JSON Converter

Withdata DataFileConverter is a local desktop-level SQL to JSON tool that requires no file uploads, no data leakage risks, supports efficient conversion of extra-large SQL files (>4GB), completes millions of rows of data in 1 minute, and meets the needs of personal development, enterprise data migration, and automated scripting scenarios.

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Cross-Platform Support

Perfectly compatible with Windows, macOS, and Linux systems

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Dual-Mode Operation

Visual GUI click operation + Command Line CLI automatic scheduling

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Privacy & Security

Local offline conversion, no data transmission to the cloud

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Fast Processing

Millions of rows of data converted in seconds, supporting extra-large files

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Full Format Coverage

One-click output of standard JSON, JSON Array, JSONL(NDJSON/LDJSON)

Supported Conversion Types (Full Scene Coverage)

Single SQL File → Single JSON File
Single SQL File → JSON Array (with custom root node name)
Single SQL File → JSONL/NDJSON (line-separated JSON, friendly for stream reading)
Multiple SQL Files → Merged into One JSON
Multiple SQL Files → Batch Convert to Multiple JSON Files (1:1 correspondence)
Single SQL with Multiple Tables → Each Table as a Separate JSON File

Visual GUI Conversion Steps (4 Steps to Complete)

Step 1: Create a New Conversion Task

Click "Start a New Convert" → Select source format SQL (File/Files) → Target format JSON (File/Files) → Confirm to enter the wizard 📷

Step 2: Load Source SQL Files

Open local SQL files, automatically parse table structure and data preview; support single file, multiple files, and folder batch import; select tables to convert. 📷

Step 3: Configure Target JSON Parameters

Set output path and encoding (default UTF-8); select JSON format: Array Without Name / Array With Name / JSON Lines; customize field mapping and date format. 📷

Step 4: Start Conversion

Click "Convert Data" to view the conversion progress in real time, and directly open the output file after completion. 📷

Command Line CLI Mode (Automation/Scheduled Tasks)

Save the session file after GUI configuration
Generate .bat (Windows) or .sh (Linux/macOS) script 📷
Support:
- Windows Task Scheduler
- Linux/macOS Crontab scheduled conversion
- Data stream/automated script integration call

Output Format Details

1. Standard JSON (with/without root node)

{
  "employees": [
    {
      "DEPARTMENT_ID": 90,
      "LAST_NAME": "King",
      "FIRST_NAME": "Steven",
      "SALARY": 24000,
      "HIRE_DATE": "1987-06-17T00:00:00.000Z"
    }
  ]
}
            

2. JSON Array (without named root node)

[
  { "EMPLOYEE_ID": 100, "EMAIL": "SKING" },
  { "EMPLOYEE_ID": 101, "EMAIL": "NKOCHHAR" }
]
            

3. JSONL / NDJSON (line-separated JSON)

{"DEPARTMENT_ID":90,"LAST_NAME":"King","SALARY":24000}
{"DEPARTMENT_ID":90,"LAST_NAME":"Kochhar","SALARY":17000}
            

Frequently Asked Questions (FAQ)

Will converting large files cause lag?

No, it supports extra-large SQL files (>4GB). It uses stream processing that does not occupy memory, and millions of rows of data can be completed in about 1 minute.

Is the data secure?

Completely secure. It converts locally offline without network transmission and does not leave background logs.

Does it support macOS/Linux?

Yes, it provides native versions for Windows, macOS, and Linux.

Can I schedule automatic conversions?

Yes, after saving the session, you can use the command line + scheduled tasks to achieve fully automatic conversion.

Does it support custom date formats?

Yes, you can configure the source date format and the target ISO date format for automatic conversion.