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Test ID Generator (SSN / Tax / National ID)

Generate clearly-fake, format-valid national identifiers for testing — US SSN/EIN/ITIN, UK NINO, India PAN/Aadhaar, German Steuer-ID, Brazil CPF/CNPJ, Canada SIN, Spain NIF, France INSEE. Uses reserved/never-issued ranges where defined (SSN area 900-999, ITIN 9XX-7X-XXXX, SIN prefix 9, NINO prefix TN), correct per-country checksums (Verhoeff, Luhn, mod-11, mod-23, mod-97), validate any ID, bulk export to CSV/JSON/text. 100% client-side — test only, never real.

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Generate clearly-fake, format-valid national identifiers for testing — US SSN/EIN/ITIN, UK NINO, India PAN/Aadhaar, German Steuer-ID, Brazil CPF/CNPJ, Canada SIN, Spain NIF, France INSEE. Uses reserved/never-issued ranges where defined (SSN area 900-999, ITIN 9XX-7X-XXXX, SIN prefix 9, NINO prefix TN), correct per-country checksums (Verhoeff, Luhn, mod-11, mod-23, mod-97), validate any ID, bulk export to CSV/JSON/text. 100% client-side — test only, never real. Everything runs locally in your browser — your data never leaves your device.

How to use

  1. Enter your input in the tool above.
  2. Adjust any options to your preference.
  3. Use the Copy or Download buttons to save the result.
  4. Everything happens locally — your data never leaves your browser.
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