Online Hash Generator — All Algorithms Simultaneously
All 4 algorithms simultaneously · HMAC mode · File hashing · Compare · Batch · 100% browser-side
Type text → get all 4 hashes instantly
MD5 · SHA-1 · SHA-256 · SHA-512 · Real-time
The most complete online hash generator — compute MD5, SHA-1, SHA-256, and SHA-512 all at once with a single input. No page reload, no button click. Real-time results as you type. Includes HMAC mode, file drag & drop, and batch processing.
What is a Hash Function?
A hash function converts any input — text, password, file — into a fixed-length string of hexadecimal characters. The same input always produces the same hash, but even a single character change produces a completely different hash. Hashes are one-way — you cannot reverse them to recover the original input.
MD5 vs SHA-1 vs SHA-256 vs SHA-512
MD5 (128-bit, 32 hex chars) is fast and widely used for non-security checksums but is cryptographically broken. SHA-1 (160-bit, 40 hex chars) is deprecated for security use since 2017. SHA-256 (256-bit, 64 hex chars) is the current industry standard — used in SSL certificates, Bitcoin, and code signing. SHA-512 (512-bit, 128 hex chars) offers maximum security for highly sensitive applications.
Frequently Asked Questions
Can I generate multiple hash types at once?
Yes. This tool generates MD5, SHA-1, SHA-256, and SHA-512 simultaneously from a single input. Use the algorithm toggles to show or hide specific algorithms.
Does this tool work offline?
Yes. All hashing runs in your browser using JavaScript (MD5) and the Web Crypto API (SHA-1/256/512). No internet connection is needed after the page loads.
Is my input sent to any server?
No. All computation happens 100% in your browser. Your text and files never leave your device. This is especially important for hashing sensitive data like passwords or API keys.
How do I hash multiple strings at once?
Click Batch Mode. Paste one string per line. All strings are hashed using your selected algorithm simultaneously. Download results as a .txt file.
What is the fastest hashing algorithm?
MD5 is the fastest (pure JavaScript), followed by SHA-1, SHA-256, and SHA-512. For text inputs, all four complete in under 1ms. For large files, SHA-256 via Web Crypto API is typically fastest.