Which hash algorithm should you use?
MD5 and SHA-1 are fast but cryptographically broken — collisions (two different inputs producing the same hash) have been demonstrated for both, so neither should be used for security purposes like password storage or verifying that a file hasn’t been tampered with by an adversary. SHA-256 and SHA-512 are the current standard for security-sensitive use cases; MD5 and SHA-1 still show up for legacy compatibility (checksums, non-security deduplication) where collision resistance doesn’t matter.
Verifying a file download
Many software releases publish a SHA-256 checksum alongside the download. Hashing the file you downloaded and comparing it to the published value confirms the file wasn’t corrupted in transit or swapped for a tampered copy — any single-byte difference in the file produces a completely different hash.
Hashing files, not just text
Beyond pasted text, the tool hashes files directly in your browser using the WebCrypto API — the same browser-native cryptography engine used for HTTPS — so large files are hashed quickly without ever leaving your device.
Why use UtilityApps for this
No signup, and neither your text nor your files are uploaded — hashing runs entirely client-side via WebCrypto.