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Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 (in-browser).

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0 karakter · 0 bayt (UTF-8)Tüm hesaplama tarayıcınızda yapılır — metin sunucuya gönderilmez.
Özetler

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Yukarıdaki alana metin girin — MD5, SHA-1, SHA-256, SHA-384 ve SHA-512 anında hesaplanır.

About

What is Hash Generator?

The Hash Generator computes MD5, SHA-1, SHA-256 and SHA-512 digests of your input in the browser via the Web Crypto API; the text never reaches a server.

Hash functions are one-way and deterministic: the same input always gives the same output, and a one-character change gives a completely different one. File integrity verification relies on exactly that.

MD5 and SHA-1 are cryptographically broken — collision attacks are practical. Never use them for passwords or signatures; they're for legacy compatibility or simple integrity checks only.

Frequently Asked Questions

8 questions
Is my text sent to the server?

No. All hashing runs in your browser via the Web Crypto API; your input never leaves your device.

Is MD5 still secure?

Cryptographically, no — collision attacks are practical. Never use it for passwords or signatures; it's acceptable only for legacy compatibility or simple integrity checks. Prefer SHA-256 or better.

Can a hash be reversed to the original text?

Hash functions are one-way and mathematically irreversible. However, short predictable inputs (common passwords) can be found via precomputed tables — which is why passwords are stored salted.

Does the same text always produce the same hash?

Yes — hashes are deterministic. Even a one-character change produces a completely different output; file integrity verification relies on this property.

Can I hash a file?

This tool takes text input. For file integrity use your OS command: shasum -a 256 file on macOS/Linux, Get-FileHash file on Windows.

Which hash should I pick?

SHA-256 for anything new. SHA-512 produces a longer digest and is marginally faster on 64-bit systems, but the security difference is immaterial in practice. Use MD5 and SHA-1 only for legacy compatibility.

Which one should I use to store passwords?

None of them. The SHA family is designed to be fast, which helps attackers. Use algorithms designed to be slow: Argon2id, scrypt or bcrypt.

Can two different inputs produce the same hash?

Mathematically yes — the output is fixed-length and the input isn't, so collisions are inevitable. What matters is that finding one is infeasible; MD5 and SHA-1 are considered broken because it no longer is.