Hash Generator

Hash Generator guide

The Hash Generator calculates cryptographic hashes such as SHA-256 from text or files. A hash is a fixed-length fingerprint: the same input gives the same hash, while even a tiny change should produce a very different value.

Hashes are useful for checksums, file integrity checks, comparing content without sharing the original, and technical debugging. They are not encryption because they cannot be decrypted back to the original input.

When to use it

• Checking whether a downloaded file matches a published SHA-256 checksum.
• Comparing two text snippets or files without visually inspecting every byte.
• Creating reproducible identifiers for non-secret test data.
• Debugging APIs that require request signing or hash examples.

How to use it

1. Choose whether to hash text or a local file.
2. Select the algorithm required by your workflow.
3. Enter the text or pick the file.
4. Generate the hash and copy the hexadecimal result.
5. Compare hashes character by character when verifying integrity.

Example

hello

SHA-256: 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824

Privacy

Text and files are hashed locally in your browser using web APIs. Files are not uploaded to UtilityTools.eu.

Limitations and accuracy notes

• Plain hashes are not suitable for storing passwords. Password systems need salts and slow algorithms such as bcrypt, scrypt or Argon2.
• MD5 and SHA-1 are kept only for compatibility checks and should not be used for new security-sensitive designs.
• A matching hash proves content equality, not that a file is safe to open.

FAQ