SHA-1 Hash Generator

Generate SHA-1 hashes from text input. All operations are performed locally in your browser for maximum security. Ideal for developers needing to generate secure hashes for verification or security purposes.

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Frequently Asked Questions

What is SHA-1?
SHA-1 (Secure Hash Algorithm 1) is a hash function that produces a 160-bit (20-byte) hash value. It was once widely used but is now considered cryptographically broken.
Is SHA-1 still secure?
No, SHA-1 is no longer considered cryptographically secure as collision attacks have been demonstrated. For security-critical applications, use SHA-256 or stronger algorithms.
What is SHA-1 used for today?
While not recommended for security purposes, SHA-1 is still used for version control systems (like Git), file integrity checks, and other non-security critical applications.
Can SHA-1 hashes be reversed?
SHA-1 is a one-way function, but due to known vulnerabilities, it's possible to generate collisions. For secure hashing, use SHA-256 or stronger alternatives.
Is this tool secure?
Yes, all hash calculations are performed locally in your browser. Your data never leaves your device, ensuring complete privacy.