File organization tool
Duplicate Filename Resolver
Generate deterministic numbered names for repeated filenames without overwriting the original list.
Processing happens in this browser tab. The pasted data is not submitted to ClearCopies.
Collision-free suggestions
Extension-aware suffixes
Stable input-order results
How it works
A useful answer in three clear steps.
- 1
Paste one name per line
Complete this check before moving to the next decision.
- 2
Review generated suffixes
Complete this check before moving to the next decision.
- 3
Check destination folders for pre-existing collisions
Verify the final result against your current cloud drive or organizational policy.
Frequently asked questions
Before you use this tool
Is the Duplicate Name Resolver free to use?
Yes. You can use this tool in the browser without creating an account or installing software.
Does ClearCopies upload the data I paste?
No. This utility processes the pasted text in your current browser tab. Avoid pasting secrets, access tokens or unredacted exports into any online tool.
Can this tool delete or change my cloud-drive files?
No. This page does not connect to your cloud account and cannot rename, move or delete files. It produces an estimate, analysis or checklist for you to review.
What should I do after using the Duplicate Name Resolver?
Check destination folders for pre-existing collisions. A renamed file is not necessarily a duplicate; compare contents before deleting either copy.
Keep exploring
Related file organization tools
Filename Validator
Check filenames locally for reserved characters, trailing spaces and other common OneDrive sync risks.
Path Length Checker
Measure pasted OneDrive paths and flag entries that exceed a conservative length threshold.
Filename Sanitizer
Create safer filename suggestions by replacing reserved characters and trimming risky endings.
Ready to measure duplicate storage with real data?
Choose OneDrive or Dropbox for a read-only scan, then review exact fingerprint matches before any cleanup decision.