Hash Generator Online
MD5, SHA-256, SHA-512 — Free
Generate cryptographic hashes from any text instantly. MD5, SHA-1, SHA-256, SHA-384, and SHA-512 — all at once. 100% private, works in your browser.
Generate Hashes NowFree forever · No account needed · Works offline
Supported Hash Algorithms
Choose the right hash algorithm for your use case. All are generated simultaneously.
| Algorithm | Output Size |
|---|---|
| MD5 | 128-bit |
| SHA-1 | 160-bit |
| SHA-256 | 256-bit |
| SHA-384 | 384-bit |
| SHA-512 | 512-bit |
Features
5 Hash Algorithms
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes simultaneously from a single input.
Real-Time Hashing
Hash output updates instantly as you type. No button clicks needed — see results immediately.
One-Click Copy
Copy any hash value to clipboard with a single click. No manual selection needed.
Browser-Side Only
Uses the Web Crypto API. Your text never leaves your browser — completely private.
HMAC Support
Generate HMAC hashes with a secret key for message authentication.
File Hashing
Generate hashes from uploaded files to verify integrity and detect modifications.
Common Use Cases
File Integrity Verification
Hash files before and after transfer to verify no corruption or tampering occurred during download.
Password Verification
Verify that stored password hashes match user inputs without storing plaintext passwords.
Data Deduplication
Generate hashes to identify duplicate files or records in databases and storage systems.
Digital Signatures
Create message digests for digital signing in cryptographic workflows and document verification.
API Authentication
Generate HMAC signatures to authenticate API requests and prevent tampering.
Blockchain Development
Hash transaction data and block headers as part of blockchain and cryptocurrency development.
Frequently Asked Questions
What is a hash generator?
A hash generator converts text or data into a fixed-length string of characters using a cryptographic algorithm. Hash functions like MD5, SHA-256, and SHA-512 are one-way — you can hash data but cannot reverse it to get the original input.
What hash algorithms does this tool support?
WebToolsBox Hash Generator supports MD5, SHA-1, SHA-256, SHA-384, SHA-512, and SHA-3 algorithms. You can generate all hashes simultaneously from a single input.
Is MD5 still secure?
MD5 is no longer considered cryptographically secure for sensitive purposes like password storage, as it is vulnerable to collision attacks. It is still widely used for file integrity verification (checksums). For security-sensitive applications, use SHA-256 or SHA-512.
Is my data safe when hashing?
Yes, 100% safe. All hashing is performed locally in your browser using the Web Crypto API. Your text data never leaves your device and is not sent to any server.
What is a SHA-256 hash used for?
SHA-256 is used for password hashing (with salting), digital signatures, blockchain transactions, file integrity verification, HMAC authentication, and TLS/SSL certificates.