A Nintendo 3DS application for quickly switching the DNS used by existing Wi-Fi connections.

Features

• Saves named primary-DNS profiles on the SD card.
• Shows the profile list on every launch, including first setup.
• Press R to choose and remember the target: all configured Wi-Fi slots or connection slot 1, 2, or 3.
• Press A to apply the highlighted profile immediately.
• Always uses 1.1.1.1 as the secondary DNS.
• Exits automatically after a successful change.
• Preserves SSIDs, passwords, DHCP, proxy, and other connection settings.

Profiles are stored at sdmc:/3ds/dns-switcher/profiles.txt, and the target is stored at sdmc:/3ds/dns-switcher/settings.txt.