Validate TSV

Validate TSV checks your tab-separated file for inconsistent row lengths. Instantly catch formatting errors and fix your data with live feedback and export.

Paste your input above or import a file below.
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Supported file types: .txt, .tsv, .csv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total issues: 0
Options
Trim cell whitespace
Ignore empty rows
Maximize output

How to Use:

  • Paste or import your TSV data into the input field on the left.
  • Toggle Trim cell whitespace to clean up each value before checking.
  • Toggle Ignore empty rows to skip over blank lines in the validation.
  • Use Maximize output if you need more space in the output preview.
  • The output updates live with any detected issues or a success message.
  • Click Copy Output to copy results or Export to File to download the report.
  • Use Clear All to reset everything and start over.

What Validate TSV can do:

Validate TSV checks whether each row in your TSV has the same number of columns. It reads the first row to determine how many fields to expect, then compares all other rows against that structure. If it finds extra or missing fields, it flags them with the exact line number and count.

This is useful when preparing TSV files for import, cleaning up hand-edited data, or catching errors introduced during copy/paste or merges. It helps you ensure the structure is solid before using the data elsewhere.

Example:

Input:

name	age	city
Alice	30	NY
Bob	25
Charlie	40	TX

Output:

Line 3: Expected 3 columns, found 2

Common Use Cases:

Use it before importing TSV files into systems that require strict formatting. It’s ideal for developers, analysts, or editors who need to confirm structural consistency in tab-separated files.

Useful Tools & Suggestions:

After you run Validate TSV, it’s helpful to follow up with Show TSV Structure to visualize how your data’s laid out. And if you find anything out of place, TSV Column Deleter makes it easy to fix up the problem columns.

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