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Validador de direcciones de correo

Email validator: check length, username and domain labels with clear tips per RFC for registration, with one-click copy and offline.

Cómo usar

Introduce una dirección de correo para ver en tiempo real su validez e información del dominio.

Overview

Email Validator is a Developer tool. Check length, username and domain labels with clear tips per RFC for registration, with one-click copy and offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of Email Validator: Enter an email address to validate it and see the domain. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use Email Validator offline or on poor network — all calculations stay local and private.
  • Format and validate JSON
  • Escape code for string literals

How to use

  1. 1 Enter an email address to validate it and see the domain..
  2. 2 Pick action and options
  3. 3 Fix highlighted errors
  4. 4 Copy or export

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Strict JSON disallows comments/trailing commas
  • Watch greedy vs lazy regex
  • Disable live validation for large files

FAQ

Offline?
Yes, parsing is local.
Why invalid?
Trailing commas, single quotes or BOM often cause it.
How is Email Validator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “email validator” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
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