scrcpy (short for "screen copy") shows your Android device's screen and audio on a desktop and lets you operate the phone with your computer's keyboard and mouse. It connects over USB or over the network (TCP/IP), needs no root access and installs nothing on the phone, so the device stays untouched.

Why people use it

• Fast and light: the project reports 30 to 120 fps, 1920×1080 or higher quality, roughly 35 to 70 ms of latency and about one second to show the first frame.
• Private by design: no account, no ads and no internet connection required.
• Cross-platform: runs on Linux, Windows and macOS.

Notable features

• Audio forwarding (Android 11 and later)
• Screen recording and virtual displays
• Mirroring with the phone screen turned off
• Two-way copy and paste
• Camera mirroring (Android 12 and later) and webcam mode on Linux
• Physical keyboard, mouse and gamepad simulation, plus OTG mode

Useful for demos, app testing, screen recording and controlling a phone with a broken touchscreen. The maintainers warn that the GitHub repository is the only official download source, so avoid copies from other websites.