Developer releases free email, phone, and card validation tools with hosted API

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A developer has released a free suite of validation tools covering email, phone numbers, and payment card checks, along with a lightweight hosted API requiring no signup. The email validator goes beyond basic syntax checks by detecting disposable addresses, suggesting typo corrections, and performing real MX-record lookups to estimate deliverability. Phone validation supports E.164 formatting and country detection across 35+ countries, while card validation uses Luhn checksum logic and identifies major card brands. The tools are built on Cloudflare Workers, keeping them fast and free without reliance on paid third-party services. The developer has made documentation publicly available and is seeking community feedback on what features would make the service worth paying for.

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