Offline File Hasher

What is a File Hash?

A file hash, often referred to simply as a "hash", is a string of characters generated from a file's content using a specific hashing algorithm. This hash represents the file's "fingerprint". Even a small change to the file will produce a vastly different hash, making it a powerful tool for verifying file integrity and detecting unauthorized alterations.

How Should You Use a File Hash?

File hashes are commonly used in various scenarios:

File Verification: After downloading a file from the internet, you can compare its hash with the one provided by the website to validate the file hasn't been tampered with.
Duplication Checks: By comparing hashes of different files, you can quickly determine if they are identical, even if their file names or timestamps differ.
Forensics & Investigation: Hashes can be used to identify known files or detect changes in files over time.
File Reputation Assessment: Websites and tools like VirusTotal and FACT utilize databases of file hashes to rate the reputation of a file. By inputting a hash into these services, users can quickly ascertain if a file is recognized as malicious or benign in their extensive databases.

How Does File Hasher Work?

This online tool allows you to generate various hash values for your files without ever leaving your browser. Your files are processed locally on your device, ensuring privacy and security. To use:

Drag and drop your files onto the designated area or click on it to select files from your device.
Once the files are processed, their hash values for different algorithms will be displayed. You can click on the icon next to each hash value to copy it to your clipboard.

Note: The SHA-1 algorithm is marked with '**' to indicate that it's considered less secure for cryptographic purposes compared to the other algorithms listed.

Drag n' Drop or Click to Select Files

Hashing started. This may take several minutes Still hashing Must have been a large file Grab a coffee, this may take a while Yup, you're hashing a large file Hashing Complete!

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