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SHA-256 Online Hash Generator
Compute a SHA-256 hash for any text or file with our free SHA-256 Online. Also supports SHA-224, SHA-384, SHA-512, SHA-1, and MD5.
Common SHA-256 Use Cases
Blockchain & Crypto
SHA-256 is the core hash function behind Bitcoin, ensuring transaction integrity and proof-of-work mining.
SSL/TLS Certificates
Certificate authorities use SHA-256 to sign digital certificates, providing secure HTTPS connections.
Password Hashing
While SHA-256 alone isn't ideal for passwords, it's used in HMAC and key derivation alongside salts.
File Integrity
Download sites provide SHA-256 checksums so you can verify file integrity after downloading.
SHA-256 vs Other Hash Algorithms
| Algorithm | Bit Length | Output (hex) | Secure? |
|---|---|---|---|
| MD5 | 128 | 32 chars | No (broken) |
| SHA-1 | 160 | 40 chars | No (deprecated) |
| SHA-256 | 256 | 64 chars | Yes |
| SHA-512 | 512 | 128 chars | Yes |