Lei Number Validator

LEI Validator is a free online Validators & Checksums tool that validate an ISO 17442 Legal Entity Identifier with the ISO 7064 MOD 97-10 scheme instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server. No download or account is required: the tool loads in under a second and works offline-friendly after the first visit.

How to use

Using LEI Validator takes three steps:

  1. Paste your data into the input box (or load the example).
  2. Configure the options to match your target format or scenario.
  3. Copy, download or inspect the output — it updates live as you type.
  4. No download or account is required: the tool loads in under a second and works offline-friendly after the first visit.

Examples

529900KQMF631VPT3I16

Use cases

  • Validate an ISO 17442 Legal Entity Identifier with the ISO 7064 MOD 97-10 scheme.
  • Because everything is computed client-side, LEI Validator is safe to use with sensitive data such as API keys, tokens or private logs.

FAQ

What is LEI Validator?

LEI Validator validate an ISO 17442 Legal Entity Identifier with the ISO 7064 MOD 97-10 scheme. It runs entirely in your browser, so your data stays private.

Is LEI Validator free to use?

Yes. LEI Validator is free, unlimited and works without registration or installation.

Does my data get uploaded?

No. All processing happens locally in your browser; nothing is sent to any server.

Runs 100% in your browser — your data never leaves your device.

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