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Iban Validation WASM

Present iban_validation in a javascript propose a demo html file.

Non-registry countries

By default, only the official SWIFT IBAN registry countries validate. Pass true as the optional allow_non_registry argument to validate_iban_js or parse_iban_js to additionally accept 22 IBAN-shaped account numbers that are not in the official registry (community-sourced, weaker guarantees):

validate_iban_js("AO49012345678901234567890");        // throws (default, registry-only)
validate_iban_js("AO49012345678901234567890", true);   // true

const parsed = parse_iban_js("AO49012345678901234567890", true);
parsed.is_non_registry; // true

non_registry_countries_js(); // ["AO", "BF", ...]

The argument defaults to false/omitted, so existing calls are unaffected.

Changes

  • 0.1.29: added an opt-in allow_non_registry argument (default false) to validate_iban_js and parse_iban_js, plus JsIban.is_non_registry and non_registry_countries_js().
  • 0.1.28: upgraded to polars 0.54.4, rust 1.96.1, update to iban registry version 102 from Jun 2026 (no significant changes for this package)
  • 0.1.27: upgraded to polars 0.53.0, rust 1.93.1
  • 0.1.26: added user_friendly iban validation (handle spaces), added compile time checks, and updated to rust 1.93, dropping python 3.9, adding python 3.14
  • 0.1.25: added forbidden checksums in the validation
  • 0.1.23: upgraded to latest Iban register (version 101), only change Portugal (no branch anymore). updated to rust 1.92.0.
  • 0.1.22: upgraded to latest Iban register (version 100), only Albania (AL) and Poland (PL) have changes affecting this project. updated to rust 1.91.1.
  • 0.1.21: upgraded to polars 0.52.0, rust 1.91, improved internal data structure. Enable modern CPU instruction on x86 (x86-64-v3) and Mac (M1) for python, polars and c packages.
  • 0.1.20: technical update upgraded to polars 0.51.0, rust 1.90
  • 0.1.19: technical update upgraded to polars 0.50.0, rust 1.89
  • 0.1.18: technical update upgraded to polars 0.49.1, pyo3 0.25, rust 1.88
  • 0.1.17: memory usage reduced.
  • 0.1.16: initial release of the WASM/JS wrapper.