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SHA-1 Hash Generator

Generate the SHA-1 hash of text or bytes, as used by Git object IDs and older certificates.

Runs in your browserText → SHA-1 hash
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Example

Input
hello
Output
aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d

How to use the SHA-1 Hash Generator

  1. Paste or type your Text into the input area, or open a file from your device.
  2. Adjust the options above the editor if the tool offers any.
  3. Review the SHA-1 hash result, then copy it or download it as a file.

Privacy and limitations

  • Your data is processed on your device and is not uploaded to any server.
  • SHA-1 collisions are practical; do not use it for new security designs.

Related converters

MD5 Hash GeneratorGenerate the MD5 hash of text or hex/Base64 bytes. Useful for checksums and legacy systems; not for passwords.SHA-256 Hash GeneratorGenerate the SHA-256 hash of text or bytes in hex or Base64, the most widely used secure hash.SHA-512 Hash GeneratorGenerate the 512-bit SHA-512 hash of text or bytes in hex or Base64.SHA-224 Hash GeneratorGenerate the SHA-224 (truncated SHA-2) hash of text or bytes in hex or Base64.SHA-384 Hash GeneratorGenerate the SHA-384 hash of text or bytes, often used for Subresource Integrity (SRI) in Base64.SHA3-256 Hash GeneratorGenerate the SHA3-256 (FIPS 202 Keccak-based) hash of text or bytes.SHA3-512 Hash GeneratorGenerate the SHA3-512 hash of text or bytes, the 512-bit FIPS 202 SHA-3 variant.Keccak-256 Hash GeneratorGenerate the original Keccak-256 hash used by Ethereum (differs from standard SHA3-256 padding).

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