Does the scanner read file contents?

No. It uses only relative path strings exposed by the browser.

Does every length warning mean failure?

No. Actual limits vary by filesystem and configuration, so test the destination as well.

Can this page batch-rename files?

No. To avoid unintended changes, it only reports candidates and related paths.

Filename Scanner — tools by hsb.horse

How to use

Select a folder or enter paths
When folder selection is unavailable, paste one relative path per line.
Review hazard types
Check individual forbidden names separately from collisions between multiple paths.
Rename at the source
Confirm the destination rules and rename files in the source folder. This page never performs batch renames.

Scope of the result

The scanner cannot fully reproduce rules from network shares, archive tools, Git configuration, or cloud storage. No findings is not a universal compatibility guarantee.

Frequently asked questions

Does the scanner read file contents?: No. It uses only relative path strings exposed by the browser.
Does every length warning mean failure?: No. Actual limits vary by filesystem and configuration, so test the destination as well.
Can this page batch-rename files?: No. To avoid unintended changes, it only reports candidates and related paths.

Filename Scanner

Diagnostic result

How to use

Select a folder or enter paths

Review hazard types

Rename at the source

Scope of the result

Frequently asked questions