File checksum
Check a file with a SHA-256 fingerprint.
Report a problem with this tool
Using File checksum
A matching hash confirms the same bytes. It does not prove that the file or its source is trustworthy.
- Choose a local file.
- Calculate its SHA-256 digest.
- Compare every character with a hash supplied through a trusted channel.
Limits and checks
Input limits and validation messages are shown in the workspace. Your originals are not overwritten.
Frequently asked questions
Does a matching hash mean the file is safe?
A matching digest establishes identical bytes, not the safety or legitimacy of the source. Malware can also have a valid published hash.
Is my content sent to a server?
No. Processing runs inside your browser. Optional editor recovery saves a draft on this device only. Read the privacy policy.
Will my original file be changed?
No. Downloaded results are separate copies. Open the finished output before sharing it or deleting an original.