Want to export data from multiple similar MySQL tables to one JSON file?
Try Withdata DBToFile, a MySQL to JSON converter for Windows, Linux, and macOS, Export MySQL data to JSON, Easy and Fast.
- Can run in GUI mode, Step by Step, just a few mouse clicks.
- Can run in Command line, for Scheduled Tasks and Streams.
- Support Windows, Linux, and macOS.
Export multiple similar MySQL tables to a single JSON file
Login to MySQL -> Select MySQL tables -> Set JSON file options -> Export MySQL to JSON
Choose MySQL and logon.
Click “Export Similar Tables” at task dialog.
Select JSON file type.
1. Select similar MySQL tables.
2. Set JSON file options.
3. Set rows options.
4. Export multiple similar MySQL tables to a single JSON file.
After exporting, you can view output JSON file.
More about MySQL to JSON converter
Download Withdata DBToFile
See also:
- Export MySQL table to JSON
- Export MySQL query results to JSON
- Batch export MySQL tables to JSON files
MySQL → JSON reference
Type mapping
| Value kind | in MySQL | in JSON |
|---|---|---|
| Int | INT | 1234 (number) |
| Bigint | BIGINT | 9007199254740993 |
| Decimal | DECIMAL(p,s) | 1234.56 (number) |
| Float | DOUBLE | 1.234e10 (number) |
| Text | VARCHAR(n) | "text" (string) |
| Long text | LONGTEXT | "multi-line\ntext" (escaped newline inside a string) |
| Date | DATE | "2026-09-18" (string) |
| Datetime | DATETIME | "2026-09-18T14:30:00Z" (string) |
| Binary | LONGBLOB | "base64:..." (string) |
| Boolean | TINYINT(1) | true / false (boolean) |
| JSON | JSON | nested object or array, kept as structure |
Dialect differences
MySQL is a database server and JSON is a file format, so the gap is wider than a dialect difference – the rows below are where values and structure stop lining up.
| Property | in MySQL | in JSON |
|---|---|---|
| port | 3306 | — |
| identifiers | `backtick` | Double quotes; backslash escapes |
| row limit | LIMIT n | — |
| dates | DATETIME, TIMESTAMP, DATE, TIME | No date type: dates arrive as strings and the reader must p... |
| long text | TINYTEXT / TEXT / MEDIUMTEXT / LONGTEXT | — |
| binary | BLOB / TINYBLOB / LONGBLOB | Not supported natively - base64 inside a string |
| separator | — | Braces and commas |
| encoding | — | UTF-8 by definition |
| typing | — | string, number, boolean, null, object, array - no date type |
| shape | Tables of rows and columns | Nested objects and arrays |
| ceiling | — | Whole document is usually parsed into memory |
Command line
| Side | Command |
|---|---|
| MySQL | mysqldump, or mysql -e "SELECT ..." > out.csv |
| MySQL (load) | mysqlimport, or LOAD DATA INFILE |
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