Bulk Check

Check a whole list of emails or usernames at once

Upload a text file with one email address or username per line. BulkCheck runs every line against 10B+ leaked records and hands you a results file to download.

Enterprise plan

How it works

1

Prepare a file

A plain .txt file up to 10 MB with one email address or username per line — up to 100,000 unique lines.

2

Upload it

Choose whether the file holds emails or usernames and upload it on the Bulk Check page of your dashboard.

3

Download the results

The check runs in the background — a full file typically takes about 8 minutes — and the results stay available for 12 hours.

100,000

lines per file

500,000

lines per day

~8 min

per full file

.txt

emails or usernames

Bulk Check is part of the Enterprise plan.

Bulk Check questions

-37%

Reducing the risk of hacking with LeakCheck

Choose one of 4 plans based on your needs and reduce the risk of hacking due to data leaks by as much as 80% today

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