# Luhn

Use 8 online Luhn tools in your browser for Luhn-related data checks. Text inputs are not stored, and uploaded files are deleted after 6 hours.

> Canonical page: https://elysiatools.com/en/tags/luhn

## Overview

Explore 8 Luhn tools for working with data that uses the Luhn algorithm. Use the browser interface without installing software; processing runs on Elysia Tools servers.

## Frequently asked questions

### What are Luhn tools used for?

Luhn tools help you work with data associated with the Luhn algorithm, including relevant checks and operations available in this category.

### Do I need to install software to use these tools?

No. You can access the tools through a browser interface, while processing runs on Elysia Tools servers.

### How is my data handled?

Text inputs are not stored. Uploaded files are automatically deleted after 6 hours, and processing is performed on Elysia Tools servers.

## Tools

- [Credit Card Validator](https://elysiatools.com/en/tools/credit-card-validator): Validate credit card numbers and identify card type (Visa, MasterCard, UnionPay, etc.)
- [ICCID Validator](https://elysiatools.com/en/tools/iccid-validator): Validate ICCID numbers for SIM cards with Luhn checksum and issuer analysis
- [IMEI Validator](https://elysiatools.com/en/tools/imei-validator): Validate IMEI numbers for mobile devices using Luhn checksum algorithm
- [ISIN Validator](https://elysiatools.com/en/tools/isin-validator): Validate International Securities Identification Numbers (ISO 6166 ISIN) with Luhn check-digit verification, country/issuer prefix and NSIN breakdown.
- [Luhn Checksum Calculator](https://elysiatools.com/en/tools/luhn-checksum): Validate or generate numbers using the Luhn algorithm (mod-10). Works for credit cards, IMEI, IMEISV, SIN, NPI and any custom Luhn-based identifier.

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