South Korea RRN Validator – Alat Online Gratis
South Korea RRN Validator
Verify the structure of a Korean Resident Registration Number.
About the South Korea RRN Validator
The South Korea RRN (Resident Registration Number) Validator is designed to verify the 13-digit identification number issued to all residents of South Korea. The RRN encodes the person's date of birth, gender, and registration location, followed by a modulo checksum digit. Our tool mathematically validates the RRN to ensure it is structurally authentic without storing any sensitive data. It's an excellent utility for developers and HR teams needing to implement basic data sanitization and validation for Korean users or employees.
Frequently Asked Questions
What information is in the RRN?
The first 6 digits represent the date of birth (YYMMDD). The 7th digit indicates gender and century (e.g., 1 for 1900s Male, 2 for 1900s Female, 3 for 2000s Male). The remaining digits contain location codes, a sequence, and a final check digit.
How is the checksum calculated?
Each of the first 12 digits is multiplied by a specific weight (2 through 9, then 2 through 5). The sum is divided by 11, subtracted from 11, and the final digit is taken. (Note: Since 2020, South Korea has moved to randomize the back digits for new issues, but historical validation still applies to older numbers).
Is my data safe?
Yes, the validation runs entirely on your device using local JavaScript. Your RRN is never saved, cached, or transmitted to any server.
Cara menggunakan alat South Korea RRN Validator
Menggunakan South Korea RRN Validator kami sangat mudah dan sepenuhnya gratis. Kami merancang Developer Tools kami khusus untuk pengguna sehari-hari yang perlu menyelesaikan pekerjaan dengan cepat tanpa mengunduh perangkat lunak rumit atau mendaftar akun.
- Unggah file Anda: Seret dan letakkan file Anda ke area unggah di atas, atau klik untuk menjelajahi perangkat Anda.
- Tunggu proses: Server cloud berkecepatan tinggi kami akan langsung memproses file Anda tanpa penurunan kualitas.
- Unduh: Klik tombol unduh untuk menyimpan file jadi Anda langsung ke perangkat Anda.
100% Aman
File Anda dienkripsi dan otomatis dihapus dari server kami setelah 1 jam. Privasi Anda terjamin.
Sangat Cepat
Kami menggunakan pemrosesan cloud berperforma tinggi untuk memastikan file Anda siap dalam hitungan detik, bukan menit.
Berfungsi di Ponsel
Tidak perlu memasang aplikasi. Gunakan alat kami dengan mulus di iOS, Android, Mac, atau Windows.