Hash Generator
✓ Web Crypto API
MD5 · SHA-1 · SHA-256 · SHA-512
Generate cryptographic hash values from any text input. All hashing runs locally in your browser using the native Web Crypto API — no data leaves your device.
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✅ Copied!
Enter some text above to generate hashes.
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📖 How to Use
- Type or paste your text into the input box. Hashes auto-generate as you type.
- All four hash types — MD5, SHA-1, SHA-256, SHA-512 — are shown simultaneously.
- Click the Copy button next to any hash to copy just that one.
- Toggle Uppercase for uppercase hex output if needed.
💡SHA-256 and SHA-512 are computed using the browser's native
crypto.subtle API. MD5 and SHA-1 are computed with a pure-JS implementation since they are not included in the Web Crypto standard (they are considered cryptographically weak).❓ Which Hash Should I Use?
MD5 — When to use it
MD5 is fast but cryptographically broken. Use it only for checksums and non-security purposes (like verifying file integrity where collisions don't matter). Never use for passwords or security tokens.
SHA-1 — When to use it
SHA-1 is deprecated for security use. It still appears in older systems and legacy code. For new projects, use SHA-256 or better.
SHA-256 — The safe default
SHA-256 is the current standard. Used in Bitcoin, TLS certificates, JWT tokens, and code signing. Use this for all modern security applications.
SHA-512 — When to use it
SHA-512 produces a longer hash (128 hex chars) and is computationally stronger. Use it when extra security margin is needed, such as high-security password hashing or digital signatures.