FreeDev Tools

SHA-1 Hash Generator

Generate SHA-1 hashes from text — 160-bit hex digest, computed locally.

Runs locally in your browser. Your input is not uploaded.

How to Use

  1. 1

    Paste your text

    Any text, any length — hashing is instant.

  2. 2

    Read the digest

    The 40-character hex SHA-1 appears as you type.

  3. 3

    Copy the hash

    Use the copy button; a security note reminds you of SHA-1's limits.

Frequently Asked Questions

A cryptographic hash function producing a 160-bit (40 hex character) digest. Published in 1995, it was the web's workhorse hash for two decades and still appears in git, legacy protocols, and file checksums.

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