Changelog

Product-value redesign

• Repositioned Z Tools around privacy-first developer/creator workflows instead of a generic “tools for everyone” directory.
• Modernized the shared product shell and replaced personal attribution/public email with Z Tools branding and a server-side Contact Form.
• Added Contact messages to the existing /admin/stats.php dashboard; messages persist until manually deleted.
• Deepened core workflows: JSON sort/file loading, JWT time/security context, Base64 local files, QR SMS/error correction, password entropy, local file hashing, URL byte feedback, Markdown sanitization disclosure, case metrics, and arbitrary WCAG foreground/background checking.
• Clarified that Image Compressor uses temporary server processing while most other tools process locally.
• Added reproducible offline verification scripts/raw results. No public benchmark/stress endpoint was added.
• Rewrote About, FAQ, Privacy, and Terms around actual code behavior. This entry does not claim AdSense approval.

Developer tool expansion

Added Hash, URL, Case, JWT, and Color tools plus their supporting technical guides.

Markdown workflow improvements

Expanded the Markdown conversion/export workflow and documentation around GFM and sanitized output.