File Hash Generator
Compute cryptographic hexadecimal digests from text using algorithms like SHA-256, MD5, and SHA-512.
Run tool
This online hash generator calculates cryptographic checksums directly from your entered text. When you submit text, the tool encodes your characters as UTF-8 and computes a hexadecimal digest according to your selected hashing algorithm. By default, the generator applies SHA-256, but you can specify other standard algorithms such as MD5 or SHA-512 by entering their names. After processing, the tool presents the complete hexadecimal digest alongside structural metadata, including the normalized algorithm name, the total digest length in bytes, and the algorithm block size. If the text field is left empty, the tool returns an empty digest value with a byte size of zero. Entering an unsupported algorithm name will result in an error instead of a digest. This tool is designed specifically for text input rather than binary file uploads or filesystem paths, making it a reliable utility for verifying string integrity and generating test signatures.
Instructions
- Type or paste your text into the Text input box.
- Enter a supported algorithm name such as sha256, md5, or sha512 in the Algorithm field, or leave it blank to use default SHA-256.
- Run the generator to compute the hash.
- Examine the generated hexadecimal digest, normalized algorithm name, digest byte size, and block size in the results area.
Examples
- Enter text 'Hello World' and leave algorithm blank to receive the 64-character SHA-256 hexadecimal digest with a 32-byte digest size.
- Enter text 'sample text string' and algorithm 'md5' to receive the 32-character MD5 hexadecimal digest with a 16-byte digest size.
FAQ
Which algorithm is used if the algorithm field is left empty?
When the algorithm field is omitted or left blank for non-empty text, the tool automatically uses SHA-256.
Can I upload binary files directly?
No. The tool processes string text content encoded as UTF-8 rather than raw binary file uploads or disk paths.
Which hash algorithms can I specify?
You can provide standard algorithms such as sha256, md5, or sha512. The tool automatically trims surrounding whitespace and normalizes your input to lowercase.
What is shown when the text field is submitted empty?
Submitting empty text produces an empty digest string without calculating a hash, reporting a digest size of zero bytes.