Table Validator

Check a table against your own rules — required, unique, ranges, patterns, date order — and export the rows that fail. Nothing is uploaded.

Your data never leaves this browser

The file is parsed, previewed and charted on your own device. Nothing is uploaded — not even a sample. Close the tab and the data is gone.

Or paste table text
Import a file to get started. Everything runs locally.

How it works

  1. 1.Import an Excel, CSV, TSV or JSON file, or paste the table. It is parsed on your own device.
  2. 2.Pick the columns to show: one category axis and up to three values.
  3. 3.Generate once, then keep tweaking — chart type, aggregation, sorting and theme update instantly.
  4. 4.Download an image, or publish the result as an encrypted link that expires on its own.

Frequently asked questions

Do I get free credits to try Table Validator?
Yes — new accounts get 5 free credits to spend on any tool, Table Validator included. After that you only pay for what you run.
How many credits does Table Validator cost?
Everything runs in your browser and nothing is uploaded: free accounts pay 1 credit per run, and Pro or Pro+ members run it as often as they like.
Is the content I paste private?
Table Validator uses your input only to generate the result. Stored results are deleted automatically by our retention policy, and you can remove any run from your history.
Do I need to install anything?
No. Table Validator works in any modern browser — nothing to download or install.