How to use the TSV Validator
- Enter or paste your input in the box (or set the options, if the tool needs no input).
- Adjust the options to match what you need — the result updates as you type.
- Copy the result or download it, and keep editing if you want a different outcome.
What does this tool do?
Checks that every line has the same number of columns as the first, and flags lines that use spaces where tabs were intended, have leading or trailing whitespace or contain an unmatched quote. Fixing these first avoids confusing import errors.
Everything runs in your browser, so nothing you enter is uploaded or stored.
Why use it?
- Free, with no sign-up and no limits.
- Instant results as you type.
- Private — your data stays on your device.
Example
Input: a b c
1 2Result: Line 2 has 2 columns (expected 3).
Privacy
Everything you type is processed in your browser. Nothing you enter is sent to our servers or stored by us. There's no account to create and nothing to install.
Frequently asked questions
Why does my pasted table fail?
Many editors turn tabs into spaces when pasting. The validator tells you which lines are affected.
Is the TSV Validator free to use?
Yes. It is free, needs no account and has no daily limit.
Last reviewed by the M2Toolkit team.