Observed arrival · 2026-08-26

Checksum Calculator for Files That Prefer to Stay Put

checksum.name Observed source

Editorial interest 78/100 Selection signal · not a rating of the site

A browser-based checksum utility that hashes text and files with SHA-256, SHA-512, SHA-1, MD5, CRC32, and HMAC.

Landing page captured for the 2026-08-26 issue.

Field notes

The calculator accepts either typed text or a dropped file and exposes algorithm choices including SHA-256, SHA-512, SHA-1, MD5, CRC32, and HMAC. The page says hashing happens in the browser, with files read in streamed chunks rather than uploaded or loaded wholesale. It also links to dedicated generators for individual algorithms and a comparison tool for checking a locally calculated value against a published checksum.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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