SHA1 generator
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Input Text
SHA1 Output
Tool Options

SHA1 Hash Generator

What is a SHA1 Generator?

This tool calculates the SHA1 (Secure Hash Algorithm 1) hash of a string. SHA1 produces a 160-bit (20-byte) hash value, known as a message digest, typically rendered as a 40-digit hexadecimal number.

How to use this SHA1 tool

  • Enter the text you want to hash.
  • The SHA1 hash will generate automatically.
  • Toggle “Uppercase Output” for uppercase characters.
  • Toggle “Calculate per line” to generate a separate hash for each line of input.

Features

  • Instant Calculation: Hashes are generated as you type.
  • Batch Processing: Use “Calculate per line” to hash a list of strings.
  • Copy/Save: Easy buttons to copy to clipboard or save to a file.
  • Secure: All processing happens locally in your browser.

Examples

Example 1: Basic SHA1

Input:

hello

Output:

aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d

Example 2: Multiple lines

Input:

admin
123456

Output:

d033e22ae348aeb5660fc2140aec35850c4da997
7c4a8d09ca3762af61e59520943dc26494f8941b