How do I make an SRI hash?

Choose the file, pick Base64 and copy the SRI line, which adds the sha384- prefix for you.

Is the file uploaded?

No. It is read and hashed in your browser. Files up to 512 MB are supported.

Why is my hash different from another tool’s?

Usually a trailing new line (echo adds one; use printf %s), a different character encoding, or Windows line endings. This tool hashes the exact UTF-8 bytes of the text.

Can a hash be reversed?

No. But short or common inputs can be found by guessing, which is why plain hashes are not suitable for passwords.

SHA-384 hash generator

Compute the SHA-384 hash of text or a file, in hex or Base64 for subresource integrity.

Runs in your browser. Your input is not uploaded.

Text (hashed as UTF-8)

Show all algorithms

SHA-384

Compare with a checksum

What it does

SHA-384 is a truncated form of SHA-512, producing a 384-bit digest (96 hex characters). Its most common web use is subresource integrity: integrity="sha384-…" on a script or stylesheet, which uses the Base64 form.

How to use it

Type text or choose a file.
Choose Base64 for an SRI value, or hex for a checksum.
Copy the result. For SRI, prefix it with sha384-.

Things to watch for

The SRI hash must be of the exact bytes the CDN serves. Hash the downloaded file, not a copy you reformatted.
SRI needs the CDN to send CORS headers and the tag to have crossorigin="anonymous".

Questions

How do I make an SRI hash?: Choose the file, pick Base64 and copy the SRI line, which adds the sha384- prefix for you.
Is the file uploaded?: No. It is read and hashed in your browser. Files up to 512 MB are supported.
Why is my hash different from another tool’s?: Usually a trailing new line (echo adds one; use printf %s), a different character encoding, or Windows line endings. This tool hashes the exact UTF-8 bytes of the text.
Can a hash be reversed?: No. But short or common inputs can be found by guessing, which is why plain hashes are not suitable for passwords.