Developer Utilities - Dev Tool

Developer Utilities is a practical toolbox for development, testing, and day-to-day troubleshooting. No account is required—open the app and start diagnosing networks, inspecting web pages, processing data, or transferring content across your local network.

Network diagnostics

• View local and public IP addresses, carrier details, and proxy information
• Ping a domain or IP address
• Run single or batch DNS queries
• Look up Whois and ICP registration information
• Scan the local network and run traceroute

Development and debugging

• View page source, inject vConsole, and run custom JavaScript
• Format JSON
• Create and decode short URLs
• Convert and preview RGB/HEX colors
• Browse system fonts

QR codes and cross-device transfer

• Scan or generate QR codes
• Transfer text, images, and files between a browser and your iPhone or iPad on the same local network
• Preview and save images, or open files with the system share sheet
• Temporary images and files are removed when the transfer session ends

Quick Note

• Save text in seconds
• Browse a dedicated history page with update times
• Tap any record to load it back into the editor

The app supports English and Simplified Chinese and follows your system language automatically.

The app contains ads. A one-time, non-subscription purchase permanently removes ads and can be restored at any time.