SHA-1 Hash Generator
SHA-1 hash tool - generate SHA-1 hashes online. Warning: SHA-1 is deprecated, use SHA-256 or SHA-512 instead.
About this tool
SHA-1 Hash Generator is a free online tool for creating SHA-1 cryptographic hashes from text and files. SHA-1 is more secure than MD5 and produces 40-character hexadecimal hashes. It's commonly used for integrity verification, digital signatures, and Git commit hashes. This tool generates SHA-1 hashes instantly without uploading data to any server. Ideal for developers, system administrators, and anyone needing secure hash generation.
How to use
- 1Enter text or upload a file that you want to hash
- 2The SHA-1 hash is generated instantly as you type or after file upload
- 3The 40-character hexadecimal hash appears immediately
- 4Copy the hash to clipboard with one click
- 5Use for version control, integrity verification, or data authentication
Specifications and limits
Generates standard SHA-1 hash (160-bit, 40 hex characters). Works with text input and files up to 100 MB. Processing speed: instant. Note: SHA-1 is being phased out in favor of SHA-256 for security reasons.