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SHA-256 Hash Generator
Generate SHA-256 hashes from text or files in your browser. Free, secure, client-side.
SHA-256 (Secure Hash Algorithm 256-bit) produces a 256-bit (64-character hex) hash. It's part of the SHA-2 family and is the recommended choice for security-sensitive hashing: passwords (with salt), digital signatures, and file integrity. Hashing runs in your browser; your data is never sent to a server.
When to use SHA-256 Hash Generator vs other formats
Use SHA-256 for any security-related hashing: password hashing (with a proper scheme), certificate fingerprints, and integrity verification. Prefer SHA-256 over MD5 and SHA-1 for new applications. Use MD5 only for legacy or non-security checksums. Use SHA-1 only when a system explicitly requires it.
Compatibility
SHA-256 is supported in all modern languages, OSs, and tools. It's the standard for TLS, code signing, and many APIs. Our tool outputs the same format as command-line and library implementations, so you can verify hashes across systems. Client-side only.
Quality considerations
SHA-256 is collision-resistant for practical purposes and is considered secure. Use it with a proper salt and key-derivation (e.g. for passwords) rather than raw hashing. For file integrity, SHA-256 is a strong choice.
Example use cases
- Verify file integrity after download (compare hash with published value).
- Generate content hashes for APIs or storage deduplication.
- Create fingerprints for documents or assets in secure workflows.
- Hash passwords or secrets with a proper scheme (salt + KDF) in your app.
- Check that two files or strings are identical without comparing byte-by-byte.
Powered by browser APIs and client-side processing.