TSV Column Replacer

The TSV Column Replacer Tool lets you overwrite the values in a specific column of your tab-separated file. Replace by column name or index, trim values, and preview your results instantly. Includes import, export, and live output tracking.

How to Use:

1. Paste your TSV into the Input TSV field or import a .tsv or .txt file.
2. In the Column to Replace field, enter:
   • A column name (e.g., Science) if Header Row Present is ON.
   • A column index (e.g., 2) if headers are not used (0 = first column).
3. In the New Values field, enter one replacement value per row.
4. Toggle Trim Whitespace to remove spaces from values.
5. Click Replace Column to apply changes.
6. Use Copy Output or Export to File to save your result.
7. Click Clear All to reset everything.

What TSV Column Replacer Tool Can Do:

• Replaces the contents of a single column in TSV data.
• Matches columns by header or index.
• Applies one new value per row or leaves empty cells when no value is provided.
• Provides real-time preview and row/column count.
• Supports trimming and full file handling options.

Example:

Input TSV:

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

New Values (Replacing Science):

95  
82  
100

Result:

Name	Math	Science  
Alice	85	95  
Bob	88	82  
Charlie	90	100

Common Use Cases:

Use this tool to update scores, reset values, anonymize a column, or inject new data into existing TSV files. It’s perfect for preparing files for import, transforming exported datasets, or adjusting specific fields in structured tabular data.

Useful Tools & Suggestions:

After replacing columns in your TSV data, TSV Column Exporter is useful if you need to pull out the updated fields for sharing or further analysis. And if you’re planning to change the order next, TSV Column Swapper makes rearranging columns quick and painless.