Changelog

Added a clear hero section at the top explaining "who we serve and what we solve", with 4 key features prominently displayed.

Added internal checkpoints for policy compliance, UX, and trust signals so the site can be self-reviewed.

Added more per-language examples so you can quickly recall how to use each tool.

Exposed ads.txt at root path for ownership verification, and added required verification meta tags and ad scripts.

Added Korean and English translations across the entire site for global users.

Added Privacy Policy, Terms of Service, and Contact pages to meet legal requirements and increase user trust.

In addition to JWT decoding, added JWT Signer tool to directly sign and generate JWT tokens.

Added tool to convert MyBatis queries to executable SQL by replacing parameters with actual values.

Added tools for system administrators including Linux/Unix file permission calculation, IP subnet calculation, and base conversion.

Automatically applies dark mode based on user system settings to reduce eye strain and facilitate nighttime work.

Improved responsive design to provide optimized UI/UX on all devices including Mobile, Tablet, and Desktop.

Enhanced search engine optimization by adding Open Graph, Twitter Card, JSON-LD Schema, and generated sitemap/robots.txt.