Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text.
Cryptographic hash functions take an input of any length and produce a fixed-size fingerprint, where even a one-character change in the input completely changes the output. That property makes hashing essential for verifying file integrity (comparing a downloaded file's hash against a published checksum), storing password verification data without storing the password itself, and detecting when a piece of data has been tampered with.
This tool generates SHA-1, SHA-256, SHA-384, and SHA-512 digests simultaneously using the Web Crypto API's built-in SubtleCrypto interface — the same cryptographic implementation used by browsers for TLS and other security-critical operations, rather than a hand-rolled JavaScript implementation that could contain subtle bugs. All four hashes update live as you type, so you can compare against a published checksum immediately.
SHA-1 is included for compatibility with legacy systems and checksums that still reference it, but it's considered cryptographically broken for security purposes (collision attacks are practical) — prefer SHA-256 or higher for anything security-sensitive. Note that this tool intentionally does not offer MD5, since it's even more broken than SHA-1 and its inclusion in modern tools tends to encourage its continued (insecure) use.
How to use Hash Generator
- 1
Enter your text
Type or paste the text you want to hash into the input box.
- 2
Read the results
All four hash algorithms update instantly below as you type.
- 3
Copy a specific hash
Click the copy icon next to any algorithm to grab just that hash.
Features
- Computes SHA-1, SHA-256, SHA-384, and SHA-512 simultaneously
- Uses the browser's native Web Crypto API for correctness and speed
- Live updates as you type — no button click required
- Per-algorithm copy buttons
Frequently asked questions
Common mistakes to avoid
- Using SHA-1 or MD5 for security-sensitive purposes like password storage — both are considered broken.
- Comparing hashes with different casing (uppercase vs lowercase hex) and assuming they don't match — hex hashes are case-insensitive in value even though this tool outputs lowercase.
- Hashing a password directly without a salt for storage — always use a purpose-built password hashing algorithm (bcrypt, Argon2) for that use case, not a general-purpose hash.
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