Is this hash generator really free?

Yes — completely free, with no file size limits and no account required. Everything runs in your browser, so there's no server cost to recoup.

Which hash algorithms are supported?

MD5, SHA-1, and SHA-256. SHA-1 and SHA-256 use your browser's built-in, hardware-accelerated crypto engine; MD5 is computed with a from-scratch implementation since browsers dropped native MD5 support years ago.

Is MD5 or SHA-1 still safe to use?

Not for security purposes — both are broken for tamper-resistance (collisions can be engineered) and shouldn't be used for passwords or digital signatures. They're still fine for non-adversarial uses like checking a download for accidental corruption or generating a quick content fingerprint.

Is my text or file uploaded anywhere?

No — hashing happens locally in your browser, either directly or inside a Web Worker for files, so the tab stays responsive. Nothing you type or drop here is ever sent over the network.

Hash Generator

Generate MD5, SHA-1 and SHA-256 hashes from text or a file — free and entirely private.

Text

Or hash a file

Drop files here or click to choose

🔒 Your files never leave your browser

How it works

This tool computes cryptographic hashes directly inside your browser tab. Type or paste text above to see its hash update live, or drop a file to hash its raw bytes — file hashing runs inside a Web Worker so hashing a large file doesn't freeze the page. Nothing you enter is ever uploaded anywhere.

MD5, SHA-1, and SHA-256 are all computed side by side, so you don't need to guess which one a checksum file expects. SHA-1 and SHA-256 use your browser's native, hardware-accelerated Web Crypto API; MD5 isn't available natively in browsers anymore, so it's computed with a hand-written implementation that's been checked against the standard RFC 1321 test vectors.

Common uses: verifying a downloaded file matches the checksum published by its source, generating a quick fingerprint to detect whether two files are identical, or producing hash values for use in code, tests, or documentation.

Limitations

This tool doesn't support keyed hashing (HMAC) or newer algorithms like SHA-3 or BLAKE. For security- sensitive tamper detection or digital signatures, use SHA-256 or stronger — MD5 and SHA-1 are only suitable for non-adversarial checksums these days.

FAQ

Is this hash generator really free?: Yes — completely free, with no file size limits and no account required. Everything runs in your browser, so there's no server cost to recoup.
Which hash algorithms are supported?: MD5, SHA-1, and SHA-256. SHA-1 and SHA-256 use your browser's built-in, hardware-accelerated crypto engine; MD5 is computed with a from-scratch implementation since browsers dropped native MD5 support years ago.
Is MD5 or SHA-1 still safe to use?: Not for security purposes — both are broken for tamper-resistance (collisions can be engineered) and shouldn't be used for passwords or digital signatures. They're still fine for non-adversarial uses like checking a download for accidental corruption or generating a quick content fingerprint.
Is my text or file uploaded anywhere?: No — hashing happens locally in your browser, either directly or inside a Web Worker for files, so the tab stays responsive. Nothing you type or drop here is ever sent over the network.

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