Hash Generator (MD5, SHA-1, SHA-256, SHA-512)

Generate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-512) from any text. 100% client-side, instant results.

Free Always No Account Needed 100% Client-Side

13 bytes

MD5128-bitLegacy

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SHA-1160-bitLegacy

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SHA-256256-bitSecure

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SHA-512512-bitSecure

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✓ SHA-1/256/512 use the native Web Crypto API. MD5 uses a pure-JS implementation. Nothing leaves your browser.

About this tool

Cryptographic hash functions take any input and produce a fixed-length output (digest) that uniquely represents the input. Even a tiny change in input produces a completely different hash.

This tool generates hashes using the most common algorithms:

- MD5 (128-bit) — legacy, not cryptographically secure, still used for checksums and non-security file integrity checks - SHA-1 (160-bit) — deprecated for security use, still common in git commit IDs - SHA-256 (256-bit) — widely used, recommended for most security applications - SHA-512 (512-bit) — maximum security, used in high-security applications

SHA-1/256/512 use the native Web Crypto API for maximum performance. MD5 uses a fast pure-JavaScript implementation since browsers don't natively support it.

All hashing happens entirely in your browser — your data is never sent to any server.

Frequently Asked Questions

Is MD5 still safe to use?
MD5 is not safe for passwords or digital signatures (it has known collision attacks). It's still fine for non-security uses like file integrity checksums.
Can I hash a file, not just text?
Currently this tool hashes text input. For file hashing, use the browser's Web Crypto API directly or a dedicated file hash tool.
Are my inputs sent to a server?
No. All hashing uses the browser's native Web Crypto API (SHA-*) or a client-side JS library (MD5). Nothing leaves your machine.
What's the difference between SHA-256 and SHA-512?
SHA-512 produces a longer (512-bit vs 256-bit) hash and is theoretically stronger, but SHA-256 is already considered unbreakable for practical purposes.

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