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Duplicate File Finder

Identify files with identical contents using local SHA-256 hashes.

Loading local tool…
No uploadsYour files stay on this device.
Local engineYour browser does the work.
Auto cleanupTemporary memory is released.
About this tool

Use duplicate file finder without uploading files

Identify files with identical contents using local SHA-256 hashes. Duplicate File Finder runs in the current browser session, giving you a direct result without sending the source to a Filemazing processing server.

Processing takes place in your browser tab. Temporary working data is released when you leave or reload the page.

Three steps
  1. Provide the local input requested by Duplicate File Finder.
  2. Review the available options and choose the result required for your task.
  3. Run the operation, inspect the result, and copy or download the output.
Useful for

Common find duplicates tasks

  • Using find duplicates without an upload queue
  • Verifying local values
  • Protecting sensitive workflows
Practical details

What to know before you start

Accepted input

Local files of any type supported by Duplicate File Finder

Created output

A local find duplicates result ready to review

Tips and limitations
  • Security output is not stored by Filemazing, so save required values before leaving the page.
  • Confirm algorithms and parameters against the requirements of the system that will consume them.
  • Review the Duplicate File Finder result before using it in an important workflow.