Hash Collision Detector for Duplicate Checks

Hash Collision Detector

Find duplicate hashes in a list to identify repeats or potential collisions. This is useful when auditing datasets or validating import results.

How to use the Hash Collision Detector

1. Paste your list of hashes.
2. Click Detect.
3. Review the duplicates found.

Common use cases

• Checking for repeated IDs in exports.
• Validating hash uniqueness in datasets.
• Auditing legacy data migrations.
• Spotting accidental duplicates in logs.

Tips & notes

• Normalize case if your hashes use mixed casing.
• Remove empty lines to avoid false positives.
• Consider grouping by source for large lists.

Safety note

This tool only detects duplicate values and does not assess cryptographic collision resistance. Use proper cryptographic analysis for security guarantees.

Related security tools

• SHA-256 Hash Generator
• SHA-1 Hash Generator
• MD5 Hash Generator