Open Source Kotlin Screen Mirroring Software

BlockAds is a free, open-source Android application designed to block advertisements, trackers, and malicious domains across the device. It uses local VPN-based DNS filtering without requiring root access. An alternative root proxy mode provides additional traffic routing options. Users can enable established filtering lists and create custom blocking or allow rules. The application supports DNS-over-HTTPS, per-app filtering, and encrypted DNS providers. Advanced HTTPS filtering enables additional content blocking through a local interception system. Real-time DNS logs help users inspect blocked requests and troubleshoot connections. Built with Kotlin and Jetpack Compose, BlockAds processes filtering data locally without collecting personal information.

android-airplay-server for Android is a free, open-source application that transforms Android phones, tablets, and TVs into AirPlay-compatible displays and speakers. Based on UxPlay, it receives screen mirroring, video, and audio streams from Apple devices over a local network. It supports H.264 and H.265 video decoding alongside AAC and ALAC audio formats. Users can stream videos through HLS, play music with album artwork, and control playback remotely. Android TV integration provides directional navigation, seeking controls, and Picture-in-Picture support. Configurable settings include resolution, frame rate, overscan, audio latency, and optional PIN authentication. A debugging overlay displays live playback statistics. USB tethering also enables compatible Apple devices to use Android hardware as a wired secondary display.