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verify-pak-nic
Modern Pakistani CNIC utility toolkit—offline structural validation, parse, format, mask, and test-data generators for Node and browsers.
The Brief
Validate CNIC fields without calling the government.
verify-pak-nic centralizes province digits, family-number rules, and weighted checksum validation so web and API teams stop copying divergent regex.
The library is explicit about scope: offline structure only—never NADRA identity lookup—and ships tree-shakeable ESM/CJS builds with Vitest coverage.
Technical Architecture
Core API
validateCNIC, parseCNIC, formatCNIC, maskCNIC, and generators share one constants + checksum module.
Packaging
tsup dual builds, sideEffects: false, browser and Node export maps.
Privacy
Zero telemetry and no network—safe for regulated forms that only need format checks.
API clarity over magic helpers
Validation returns structured reasons; parse exposes province and gender metadata; README sets compliance expectations up front.
Scope
Offline structure
Ship
npm · MIT
Role
Open Source Author
Client
Community library / verify-pak-nic
Date
2026
Collaborators
Solo build
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