Canadian SIN Generator & Validator
Generate a safe, never-issued Canadian Social Insurance Number, or validate any SIN's 9-digit Luhn checksum.
Generate
Starts with 0, which is never assigned to a real person, while still passing the Luhn checksum — safe for testing.
Validate
Enter a value above to validate it instantly.
A Canadian SIN is 9 digits validated by the Luhn (mod-10) algorithm. The generator produces numbers starting with 0 — a first digit that is never assigned to a real person — while still passing the Luhn check, so the result is a safe placeholder. The validator confirms any SIN's length and checksum.
Use it to test forms and systems that accept Canadian SINs without ever touching a real person's number.
Frequently asked questions
Is a generated SIN real?+
No. It starts with 0, which Service Canada never issues, so it can never belong to a real person — even though it passes the Luhn checksum.