This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Echo JS
echojs.bsky.social
did:plc:byfbxdetcrmczn6oimdwyro7
Analysis of CVE-2025-12758 - how zero-width characters could bypass length validation in validator.js
http://www.echojs.com/news/43201
https://www.thedroidsonroids.com/blog/when-zero-width-isnt-zero
2026-01-28T15:05:41.650Z