SHA-256 hash generator

Hash text or files with SHA-256, SHA-1, SHA-384 or SHA-512.

Compare a downloaded file's hash with the one published by the developer to check it was not tampered with.

How to use it

  1. Type text or choose a file.
  2. Copy the hash.

Questions

Are my files uploaded to a server?

No. The tool runs entirely in your browser using JavaScript, so your files never leave your device. You can even disconnect from the internet after the page loads and it keeps working.

Guides

All guides
Developer tools · 23 Oct 2026How to Check the SHA-256 Hash of a File (Windows, Mac, Linux)Check a file's SHA-256 hash with certutil or PowerShell on Windows, shasum on Mac, sha256sum on Linux, or in your browser. Verify downloads properly.Developer tools · 23 Oct 2026How to Create a Strong Password You Can Actually ManageLength beats complexity. Learn how long a password should be, how passphrases work, and how a password manager makes strong passwords painless.Developer tools · 23 Oct 2026How to Generate a UUID: Online, Python, JavaScript, SQL & ExcelHow to generate a UUID online or in Python, JavaScript, Java, PostgreSQL, Linux and Excel, plus UUID v4 vs v7 and what a Minecraft UUID really is.

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