Hash & Checksum
Compute cryptographic hashes, checksums and HMAC signatures for text, so you can compare values, verify integrity or reproduce the digest a system expects. They are useful for developers, sysadmins and security-minded users who want to check data without exposing it.
10 tools
Popular tools
SHA-256 Hash Generator
Hash any text with SHA-256 and get the 256-bit digest as hex or Base64 in real time.
Hash & Checksum
File Hash Calculator
Drop one or more files and get every checksum you need in a single pass, without uploading anything.
Hash & Checksum
MD5 Hash Generator
Get the 128-bit MD5 digest of a text or of raw hex bytes as you type.
Hash & Checksum
Hash Verifier
Paste the checksum you were given, drop the file, and see whether they match.
Hash & Checksum
SHA-1 Hash Generator
Compute the 160-bit SHA-1 digest of any text or hex bytes instantly.
Hash & Checksum
SHA-512 Hash Generator
Get the 512-bit SHA-512 digest of your text or hex bytes, ready to copy as hex or Base64.
Hash & Checksum
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Frequently asked questions
Which hash algorithm should I use?
Use SHA-256 or SHA-512 for integrity checks and signatures. MD5 and SHA-1 are broken for security purposes because collisions can be created, so keep them for legacy compatibility and non-security checksums only.
Can a hash be reversed to recover the original text?
No, hashing is one-way. Short or common inputs can be guessed by trying candidates, which is why passwords need a slow, salted algorithm such as bcrypt or Argon2 and not a plain SHA-256.
Why does my hash differ from another tool's result?
Usual culprits are an invisible trailing newline, different character encoding, or a different algorithm variant. Make sure both sides hash the exact same bytes, normally UTF-8 with no extra line break.