Long path checker
Measure every selected path against a destination folder and common or custom length limits.
Accepted files: see this tool’s format requirements. Multiple files supported. No total size limit.
Up to 2,000 files. Windows values use UTF-16 code units, and POSIX values use UTF-8 bytes. Limits exclude a terminating NUL. The selected root is replaced by your destination base. Actual filesystem and application limits can differ. Up to 1,000,000 characters. Review the settings before running.
Your result
How to use Long path checker
- Choose the folder you want to inspect.
- Review the options and run the check.
- Read the result and download the report.
Useful next steps
Choose one local folder
Use the folder picker and confirm the files you want to inspect. Nested paths are preserved. Choosing another folder replaces the selection.
Review the result
Measure every selected path against a destination folder and common or custom length limits.
Download your report
Save the report or manifest to keep the results. Your source files are unchanged, and the processing stays in your browser.