Before building our SHA-384 hash generator, we checked two tools that each got half of the checksum-verification workflow right.
Live, one page, no ads
We checked emn178's SHA-384 tool directly: live updating needs an "Auto Update" toggle, ads run down the page, and file hashing lives on a separate URL entirely. Ours is live from the first keystroke, with text and file hashing on the same page.
A tool with comparison, but no file support
coderstool.com's SHA-384 generator has a genuinely useful "compare against expected digest" field — paste a published checksum and see if it matches. But it only accepts typed or pasted text; there's no way to hash an actual file. That's the exact use case this feature is meant for.
File hashing and comparison, together
Neither tool we checked combines the two. Ours does: select a file, and the "Compare against expected hash" field checks your computed SHA-384 against a checksum you paste in, right on the same page — the actual workflow someone verifying a download needs.