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.
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How to use Hash Generator (MD5, SHA-1, SHA-256, SHA-512) Online

  1. 1
    Input Data or ParametersPaste your input string, code payload, or select parameters into the editor.
  2. 2
    Instant Local ComputationThe tool processes your request in real-time inside your browser using client-side JavaScript.
  3. 3
    Copy or Export OutputCopy the formatted result to your clipboard or download the output payload instantly.

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.

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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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