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// HASH & CRYPTO

All Hashes online

Calculate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 all at once — paste and go.

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About Hash Functions

Hash functions generate fixed-length digests from any input. They are deterministic (same input → same output) and one-way (you cannot reverse a hash to get the original text). Common use cases include checksums, password storage (SHA-256/SHA-512) and data integrity verification.

Note on MD5: MD5 is computed here using a pure-JS fallback and is provided for compatibility only. It is cryptographically broken — do not use it for security purposes.

Which hash should I use?

Other hash tools

How to Use all-hashes

  1. Type or paste the text you want to hash into the input field.
  2. All five hash algorithms run simultaneously — MD5, SHA-1, SHA-256, SHA-384, and SHA-512.
  3. Compare the digests side by side in the results panel.
  4. Click any hash value to copy it to your clipboard.

Hashing converts arbitrary text into a fixed-length fingerprint — deterministic, one-way, and collision-resistant. This tool runs MD5, SHA-1, SHA-256, SHA-384, and SHA-512 in parallel using the Web Crypto API, giving you all five digests at once so you can choose the right algorithm or verify checksums across formats in a single pass.

Choosing the Right Hash Algorithm

MD5 and SHA-1 are fast but cryptographically broken — fine for checksums and deduplication, but never for password storage or digital signatures. SHA-256 is the current standard for most security applications. SHA-384 and SHA-512 offer larger output sizes suited for highly sensitive contexts or when you need extra collision resistance. Running all five simultaneously lets you cross-check third-party hash values without switching tools.

Frequently Asked Questions

Which hash should I use for passwords?

None of these — you need a slow, salted KDF like bcrypt, Argon2, or scrypt. Fast hashes like SHA-256 can be brute-forced at billions of guesses per second with a GPU. See the Bcrypt Generator tool.

Why does MD5 produce a 32-character string when it's 128 bits?

Each hex character represents 4 bits. 128 ÷ 4 = 32 characters. SHA-256 produces 64 hex characters (256 bits), and SHA-512 produces 128 (512 bits).

Are MD5 and SHA-1 safe to use at all?

They are safe for non-security purposes: file deduplication, cache keys, or verifying a download matches a known checksum. They are unsafe for security-sensitive use because collision attacks are practical.

Does the same text always produce the same hash?

Yes — hashing is deterministic. The same input always yields the same digest for a given algorithm. Even a single added space produces a completely different hash.

See also the dedicated SHA-256 tool, HMAC generator, and the Bcrypt Generator for password hashing.