data.day
Useful, not loud

Tools

Small tools we use in real work. They run in the browser. We don’t track usage and we don’t store your data.

#1

beta

ID Generator

Generate UUIDs and time-ordered IDs locally in the browser. No tracking.

browser

#3

beta

Cryptographic Hasher

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes locally in the browser.

browser

#5

beta

JWT Debugger

Decode a JWT to view header, payload, and signature locally (no secret validation).

browser

#10

beta

CSV Cleaner

Normalize headers, trim whitespace, and remove empty rows — client-side.

browser