#️⃣ Hash Generator — MD5 SHA256 SHA512

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes for text or files instantly. Free online hash calculator — runs in browser, nothing sent to any server.

Input Text

Hash Types

MD5 SHA-1 SHA-256 SHA-512

HMAC signing

Compare Hash (optional)

How to Use

Enter text or file

Type or paste text in the input, or switch to File mode and drag a file onto the drop zone.

Hashes generate instantly

MD5, SHA-1, SHA-256 and SHA-512 hashes are calculated automatically as you type.

Copy any hash

Click the copy icon next to any hash row. Optionally compare against a known hash value.

Frequently Asked Questions

What is a hash function? +

A hash function takes any input and produces a fixed-length output (hash). The same input always produces the same hash, but the hash cannot be reversed to get the original input. Used for data integrity, password storage, and checksums.

What is the difference between MD5, SHA-1, SHA-256, and SHA-512? +

They differ in output length and security. MD5 (128-bit) and SHA-1 (160-bit) are considered cryptographically broken and unsuitable for security purposes. SHA-256 and SHA-512 are part of the SHA-2 family and remain secure for most uses.

Can I use MD5 for password hashing? +

No — MD5 is not suitable for password hashing. Use bcrypt, Argon2, or scrypt instead. MD5 is only appropriate for non-security checksums like file integrity verification.

Can I generate a hash for a file? +

Yes — switch to File mode to hash any file. The SHA-256 hash of a file is its fingerprint: if even one byte changes, the hash completely changes.

Are the inputs sent to a server? +

No. All hashing runs in your browser. Text hashes use the Web Crypto API (SHA family) and a JavaScript MD5 implementation. Files are read locally with FileReader.

संपूर्ण गाइड: Hash Generator

Hash Generator क्या है?

Hash Generator किसी भी input (text या file) को fixed-length cryptographic hash में convert करता है। Hash functions one-way होती हैं — output से input reverse नहीं किया जा सकता। MD5, SHA-1, SHA-256, SHA-512 सबसे common algorithms हैं।

Use cases: file integrity verification, password storage (salted hashing), digital signatures, data deduplication, और checksums। SHA-256 और SHA-512 security के लिए recommended हैं — MD5 और SHA-1 collision vulnerabilities की वजह से deprecated हैं।

कैसे उपयोग करें

Text या file input करें जिसका hash चाहिए।
Algorithm select करें: MD5, SHA-1, SHA-256, SHA-512।
Generate click करें — hash instantly display होगा।
Copy करें hash string को verification के लिए।

Pro Tips

File downloads verify करने के लिए SHA-256 checksum compare करें।
Passwords store करने के लिए bcrypt या Argon2 use करें, SHA-256 नहीं।
Same input हमेशा same hash produce करता है — यही deterministic property है।