Want to batch convert TSV files to JSON files?
Try Withdata Data File Converter, a desktop TSV to JSON converter for Windows, MacOS, and Linux, Batch convert TSV 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.
- Convert files locally and privately, avoid uploading large TSV file(s) to online services.
- Support Windows, Linux, and macOS.
Batch convert TSV files to JSON files
Select source TSV files -> Set JSON files -> Convert TSV files to JSON files
Click “Start a New Convert” at task dialog.
then show the wizard.
Select From “Files” “TSV” To “Files” “JSON”.
1. Select source TSV files.
And config the first source TSV file.
2. Config target JSON files.
3. Summary.
List source TSV files.
4. Convert TSV files to JSON files, 1 TSV to 1 JSON.
After converting, you can view output JSON files.
More about TSV to JSON converter
Download Withdata DataFileConverter
See Video: Bulk convert TSV files to JSON files without coding
See also:
TSV → JSON reference
Type mapping
| Value kind | in TSV | in JSON |
|---|---|---|
| Int | 1234 | 1234 (number) |
| Decimal | 1234.56 | 1234.56 (number) |
| Float | 1.234e+10 | 1.234e10 (number) |
| Text | unquoted; a tab in the value splits the column | "text" (string) |
| Long text | unquoted; newlines break the row | "multi-line\ntext" (escaped newline inside a string) |
| Date | 2026-09-18 | "2026-09-18" (string) |
| Datetime | 2026-09-18 14:30:00 | "2026-09-18T14:30:00Z" (string) |
| Binary | not representable | "base64:..." (string) |
| Boolean | TRUE / FALSE | true / false (boolean) |
| JSON | the whole JSON value as-is (its own quotes stay) | nested object or array, kept as structure |
Dialect differences
Both TSV and JSON are file formats, so what differs below is how each one chooses to represent a value.
| Property | in TSV | in JSON |
|---|---|---|
| identifiers | Rarely used, which is exactly why tabs in data break it | Double quotes; backslash escapes |
| dates | Conventional text: 2026-09-18 or 2026-09-18 14:30:00 | No date type: dates arrive as strings and the reader must p... |
| binary | Not supported - must be encoded | Not supported natively - base64 inside a string |
| separator | Tab | Braces and commas |
| encoding | No declaration - UTF-8 works only with a BOM | UTF-8 by definition |
| typing | None - every field is text | string, number, boolean, null, object, array - no date type |
| shape | Flat table, optional header row | Nested objects and arrays |
| ceiling | No formal limit | Whole document is usually parsed into memory |
Data File Converter without the manual work
For batch jobs, large files and scheduling use the Data File Converter converter — an offline desktop app for Windows, Linux and macOS. Free trial.
New to the format? Read what a TSV file is (and how it differs from CSV).
