TSV Column Inserter

The TSV Column Inserter Tool allows you to insert a new column at any position in a tab-separated file. Add values line-by-line, configure the index and header, and instantly preview and export the updated data.

Paste your input above or import a file below.
No file chosen
Supported file types: .tsv, .txt
Rows: 0, Columns: 0
Options
Header Row Present
Trim Whitespace

How to Use:

  1. Paste your TSV data into the Input TSV field or import a .tsv or .txt file.
  2. In the Values to Insert field, enter one value per row.
  3. Use the Options panel to configure:
    • Header Row Present to toggle column name support.
    • Insert at Column Index to define where the column will be inserted (0 = beginning).
    • Header for New Column to name the new column (applies only if headers are present).
    • Trim Whitespace to clean up cell values.
  4. Click Insert Column to preview the updated output.
  5. Use Copy Output or Export to File to save your result.
  6. Click Clear All to reset the tool completely.

What TSV Column Inserter Tool Can Do:

  • Inserts a new column at any index in TSV data.
  • Supports one new value per row or leaves blank if not enough input.
  • Allows header configuration and whitespace cleanup.
  • Provides live preview and row/column counters.
  • Fully supports import, export, and instant copy.

Example:

Input TSV:

Name	Math	Science  
Alice	85	90  
Bob	88	76  
Charlie	90	88

Values to Insert:

2024  
2024  
2024

Insert at Column Index:

1

Header for New Column:

Year

Result:

Name	Year	Math	Science  
Alice	2024	85	90  
Bob	2024	88	76  
Charlie	2024	90	88

Common Use Cases:

Use this tool to enrich TSV datasets with tags, IDs, dates, or status indicators. It’s ideal for customizing structured files for imports, analytics, or reporting tools that require added context per row.

Useful Tools & Suggestions:

After inserting new columns into your TSV file, TSV Column Replacer is handy if you need to tweak those values without shifting everything again. And once your structure’s set, TSV Delimiter Changer lets you easily convert to another format if you’re switching tools or platforms.

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