SHA-1 Hash Generator

Compute secure 40-character SHA-1 message digests for text and files.

0 characters

Drop your file here

To compute its SHA-1 hash

SHA-1 Result

Generate to see result...

What is SHA-1 Hash?

The SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function which takes an input and produces a 160-bit (20-byte) hash value known as a message digest – typically rendered as a hexadecimal number, 40 digits long. It was designed by the United States National Security Agency and is a U.S. Federal Information Processing Standard.

Instant Generation

Get your SHA-1 hash immediately for any text or file input with zero delay.

Client-Side Only

Privacy first. All computations happen in your browser; your data is never uploaded.

Drag & Drop

Easily verify file integrity by dragging files directly into the generator.

How to use this SHA-1 Generator?

  • 1 Input Data: Type or paste your text into the box above.
  • 2 Use Files: Drag and drop any file to compute its SHA-1 checksum instantly.
  • 3 Select Format: Choose between lowercase or uppercase hexadecimal output.
  • 4 Result: Copy the generated 40-character hash for your use.