How to use Offline Credential Reuse Audit
- Supply the account export (csv) and account column name using the supported input described beside the controls.
- Review the selected options and the declared scope, then run the offline credential reuse audit.
- Read the result and unresolved findings before downloading or sharing a report. The original input is not changed.
Example: Offline Credential Reuse Audit
Group exact repeated passwords in a local account export while suppressing their values. This example uses synthetic public data and the named local fixture files.
Options
- Account and password columns
- Match the exact CSV headers. Empty passwords are excluded visibly rather than treated as a shared password.
- Output groups
- Groups identify accounts with the same entered password. They do not show whether anyone else knows it.
Supported inputs and limits
Where your input is processed
This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.
Limit the information you bring into the page
Use the declared account and password columns from an export you control. Reuse is an exact comparison, not a breach or strength test. Reports omit password values and their comparison hashes, but account labels can still identify sensitive services. Review the output before saving or sharing it.
Questions about Offline Credential Reuse Audit
Are passwords included in downloads?
No. Results contain account labels and group information, without password values or comparison hashes.
Does reuse mean an account is compromised?
No. The result shows only exact reuse in the supplied export.
Can an account label be sensitive?
Yes. Review account-only reports before sharing them and clear the page when finished.