SHA-1 Hash Generator & Verifier
Generate SHA-1 hashes from text input and verify text against existing SHA-1 hashes. SHA-1 produces a 160-bit hash value but is deprecated due to security vulnerabilities - use SHA-256 or SHA-3 for new applications.
Hash Generation Settings
0 characters
SHA-1 Hash Result
Hash result will appear here
Enter text and click "Generate" to start
Security Warning
- • SHA-1 is deprecated: No longer considered secure for cryptographic purposes
- • Vulnerable to collision attacks: Google demonstrated practical attacks in 2017
- • Not suitable for passwords: Use bcrypt, scrypt, or Argon2 instead
- • Legacy support only: Still used in some older systems and Git
- • Better alternatives: Use SHA-256, SHA-3, or other secure hash functions
About SHA-1 Hash Generator & Verifier
The SHA-1 Hash Generator & Verifier is a free online tool that creates SHA-1 hash values from text input and verifies text against existing SHA-1 hashes. SHA-1 (Secure Hash Algorithm 1) produces a 160-bit hash value, providing better collision resistance than MD5, though it's now deprecated for cryptographic security applications.
Why use a SHA-1 Hash Generator & Verifier?
This tool offers quick SHA-1 hash generation for legacy system compatibility and situations where SHA-1 hashes are still required. While SHA-1 is no longer recommended for new cryptographic applications due to known vulnerabilities, it remains useful for version control systems, checksums, and maintaining compatibility with older systems that rely on SHA-1 hashes.
Who is it for?
Ideal for developers working with legacy systems, Git version control, and applications that still require SHA-1 compatibility. Also valuable for system administrators managing older infrastructure, security researchers studying hash functions, and students learning about cryptographic hash evolution and vulnerabilities.
How to use the tool
Input the text or data you want to hash into the provided text field
Click the generate button to create the SHA-1 hash instantly
Copy the resulting 40-character hexadecimal SHA-1 hash value
For verification, enter both the original text and existing SHA-1 hash to check for matches
Use the clear function to reset inputs and generate new hashes as needed
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