SFMC Helper — jjdev

A lightweight, dependency-free browser extension that extends Salesforce Marketing Cloud (SFMC) with a curated toolbox of utilities for power users.

Key features:

Developer tools:
Encode/decode (Base64, URL, HTML, JWT, SHA-256, etc.),
JSON formatter,
CSV ⇄ JSON converter,
Regex tester,
Text stats (SMS segment counter),
Diff viewer,
code generators,
AMPscript/SQL helpers,
Searchable code reference library

Marketing tools:
Subject-line analyzer (deliverability, truncation preview, spam triggers),
Email HTML preflight checker (WCAG, client compatibility),
Color contrast checker, Send-time calculator,
Personalization string composer
Context awareness: Detects SFMC stack, app from the page;
command palette (Alt+A) for fast app navigation;
floating launcher (Alt+S) for in-page access

Customizable UI:
Dark/light theme toggle,
per-tool visibility controls,
category-level hides (Developer/Marketing groups),
pinned Time and Context tools

Security: Read-only, never accesses tokens/cookies, runs entirely locally (no telemetry)