All Tools
Metadata
Duplicate File Check
Check if you've uploaded this exact file before
Free
No sign-up
Medium
About this tool
Upload a file to check whether an identical file (by content, not filename) has been uploaded through this checker before.
Frequently asked questions
How does this detect duplicates?
By comparing the file's SHA-256 hash — two files are considered duplicates only if their content is byte-for-byte identical, regardless of filename.
Does this compare against files from other people?
It checks against every file previously submitted through this tool by anyone — it's a shared, growing record of content hashes, not a private per-user history.