Developer Utilities - Dev Tool

An all-in-one toolbox for development. Now fully supports transferring text, images, and files over your local network.

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.