What does this tool do?
SHA-1 Generator converts any text you enter into a 40-character (160-bit) SHA-1 digest. It is handy for checksum verification, legacy system compatibility, or Git object IDs, though it is no longer considered safe for security purposes.
How to use it
- Enter the text you want to encode or decode.
- The conversion happens automatically.
- Copy the result and use it safely.
Why SHA-1 is not secure
SHA-1 is considered cryptographically broken since 2017, when a practical collision was demonstrated, meaning two different inputs can produce the same digest. For anything requiring real security, such as password storage, digital signatures, or certificates, you should use SHA-256 or a stronger algorithm. The tool surfaces this warning right in the interface. That said, SHA-1 remains widely used for non-security tasks like file integrity checks, cache keys, and legacy API compatibility.
Computed locally in your browser
The digest is generated directly on your device using the browser's built-in Web Crypto API, so your text never reaches a server. A single checkbox lets you display the result in uppercase, which helps when matching output to systems that expect capital letters. You can copy the resulting 40-digit hexadecimal value with one click. The same input always yields the same SHA-1 digest, which makes comparing values straightforward.
Frequently asked questions
How long is a SHA-1 hash?
SHA-1 always produces a 160-bit output, which corresponds to 40 characters in hexadecimal notation.
Can I use SHA-1 for storing passwords?
No. SHA-1 is cryptographically broken; use a purpose-built method like bcrypt or Argon2 for passwords.
Where is SHA-1 still used?
It is common in non-security contexts such as Git object IDs, file integrity checks, and legacy system compatibility.
Is SHA-1 Generator free?
Yes. SHA-1 Generator and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. SHA-1 Generator works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.