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Bulk Email Validator

Validate a whole list at once and export the result.

Email Validator Tools Reviews Free · no sign-up

Drop a .csv or .txt list here, or click to choose

The export follows this filter, so you can download just the rows you need.

Quick Tool Overview

The Bulk Email Validator checks a whole list at once — syntax, disposable domains, role accounts and typos — in one sortable table you can filter to the problems and export as CSV.

What it does
Validates an entire email list in one pass
You give it
A pasted list, or a .txt or .csv from your disk
You get back
A row per address with verdict, score and reasons
Row limit
None — it runs on your machine, not a metered API
Best for
Checking a list before importing it anywhere
Email Validator Tools Free, unlimited use No sign-up Runs in your browser

About the Bulk Email Validator

Paste a list — a few dozen addresses or a few hundred thousand — and get one row per address: the verdict, the score, the domain, and every reason the address was marked the way it was. Sort it, filter it to just the problems, and export the whole thing as CSV.

The filter is the part that saves the time. Show only the invalid rows to fix them, only the disposable ones to drop them, or only the clean ones to copy straight into your sending platform. Whatever is on screen is what gets exported.

Because everything happens in the tab, there is no per-address charge and no queue, and the list itself never leaves your machine — which matters, because a customer list is personal data and uploading one to be checked is the part of this job nobody is comfortable with.

Key features of the Bulk Email Validator

No row limit

Hundreds of thousands of addresses, with no per-address price.

Filter to the problems

Show only the invalid, risky, disposable or clean rows.

CSV export

Download whatever the filter is showing, headers included.

Reads any separator

Line breaks, commas, semicolons, tabs, and names in angle brackets.

Nothing is uploaded

Your customer list never leaves the browser tab.

How to use the Bulk Email Validator

  1. 1

    Paste or drop your list

    One address per line, or a .txt or .csv file from your disk.

  2. 2

    Read the summary

    Valid, risky and invalid counts across the whole list.

  3. 3

    Filter to what matters

    Narrow the table to just the invalid, risky or clean rows.

  4. 4

    Export the result

    Download whatever the filter is showing as a CSV.

Frequently asked questions

There is no hard limit, and lists in the hundreds of thousands are fine. Very large lists take a moment to render the table, so the display is capped while the counts and the export cover every row.

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