maratoolGenerate MD5 SHA-256 Hash Online
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text instantly. All hashing happens in your browser — nothing is sent to a server.
What is Generate MD5 SHA-256 Hash?
A cryptographic hash function maps an input of arbitrary length to a fixed-length digest in a way that is deterministic, fast to compute, and infeasible to reverse. MD5 (Rivest, 1992) produces a 128-bit digest and is now considered broken for security uses but still common for non-cryptographic checksums. SHA-1 (NIST, 1995) produces 160 bits and is also deprecated for digital signatures. The SHA-2 family — including SHA-256 and SHA-512 — remains the current standard for integrity verification, message authentication codes, password storage (with a key-derivation function), digital signatures, and content addressing in systems like Git and IPFS.
How to use
- Type or paste any text into the input field.
- MD5, SHA-1, SHA-256, and SHA-512 hashes update in real time as you type.
- Click the Copy button next to any hash to copy it to the clipboard.
Frequently asked questions
What is the difference between MD5, SHA-1, SHA-256, and SHA-512?
MD5 and SHA-1 are older algorithms considered cryptographically broken for security uses. SHA-256 and SHA-512 are part of the SHA-2 family and are still considered secure. Use SHA-256 or SHA-512 for any security-sensitive hashing.
Can I reverse a hash to get the original text?
No. Hash functions are one-way. You cannot reverse a hash to get the original input. This is by design — hashes are used to verify integrity, not to store recoverable data.
Is my input sent to a server?
No. All hashing happens entirely in your browser using the Web Crypto API (for SHA) and a pure JavaScript MD5 implementation. Your input never leaves your device.
Should I use MD5 for passwords?
No. MD5 is not suitable for password hashing. Use bcrypt, scrypt, or Argon2 for passwords. These algorithms are designed to be slow and resistant to brute-force attacks.
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