What is SHA-1?
SHA-1 is a cryptographic hash function that produces a 160-bit digest.
Security
SHA-1 Generator
Calculate a SHA-1 digest for text or files directly in your browser.
Tool
SHA-1 Generator
Calculate a SHA-1 digest for text or files directly in your browser.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this SHA-1 generator for legacy systems and compatibility checks. SHA-1 is no longer collision-resistant and should not be selected for new security-sensitive applications.
Examples
- hello world
- Calculate a SHA-1 file checksum
- Generate a legacy SHA-1 digest
Frequently Asked Questions
Is SHA-1 still secure?
No. SHA-1 is vulnerable to practical collision attacks and is deprecated for digital signatures and certificates.
Why is SHA-1 still supported?
Some older systems and file repositories still publish SHA-1 values for compatibility.
Related Tools
Bcrypt Generator
Create salted bcrypt hashes for passwords and development tests.
TOOLBcrypt Checker
Verify a plaintext password against a standard bcrypt hash.
TOOLMD5 Generator
Generate MD5 checksums for compatibility and non-security integrity checks.
TOOLSHA-256 Generator
Calculate a SHA-256 digest for text input or selected local files.
TOOLSHA-512 Generator
Calculate a SHA-512 digest for text input or selected local files.
TOOLHMAC Generator
Create keyed message authentication codes from a message and secret key.
TOOL