UnQTools
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Email Validator

Validate single email addresses or a whole list. Checks format, syntax, length limits, and top-level domain against the real IANA TLD list, with clear per-error explanations. Batch mode + CSV export. 100% private.

100% Private Works Offline Instant

Validate single email addresses or a whole list. Checks format, syntax, length limits, and top-level domain against the real IANA TLD list, with clear per-error explanations. Batch mode + CSV export. 100% private. Everything runs locally in your browser — your data never leaves your device.

How to use

  1. Enter your input in the tool above.
  2. Adjust any options to your preference.
  3. Use the Copy or Download buttons to save the result.
  4. Everything happens locally — your data never leaves your browser.
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