Developer Tools
Hash Generator
Generate MD5, SHA-1, SHA-256, or SHA-512 hashes from any text input, directly in your browser using the native Web Crypto API. All hashing happens locally. Your input is never sent to a server.
Hashes update instantly as you type
Hashing runs in your browser using the Web Crypto API; text never leaves your device
Features
- Supports MD5, SHA-1, SHA-256, and SHA-512 algorithms
- Output in hex (lowercase or uppercase) or Base64
- Real-time hashing as you type
- Shows byte length of the input and hash output
- Copy hash with one click
- Uses the browser's native Web Crypto API for SHA variants
How to use it
- Type or paste the text you want to hash.
- Select the algorithm (SHA-256 recommended for most uses).
- The hash appears instantly in the output panel.
- Copy the hex string or Base64-encoded hash.
Use cases
- Generating checksums to verify file integrity
- Creating hash references for password reset tokens
- Comparing known hashes to verify document authenticity
- Learning how different algorithms produce different outputs
Limitations
- Simple hashes are not a password storage system.
- Very large input can be slower on older devices.
- This utility is designed for common snippets and local inspection, not as a full security or language-specific validator.
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Use toolFrequently asked
Is MD5 safe to use for passwords?
No. MD5 and SHA-1 are cryptographically broken and must not be used for password hashing. Use bcrypt, Argon2, or PBKDF2 for passwords. This tool is for checksums and educational purposes.
Why does the same text always produce the same hash?
Hash functions are deterministic. The same input always produces the same output. This property is what makes them useful for integrity checks.