An open IP-KVM on the ESP32-P4 - a target machine's screen, and a USB keyboard and mouse, in a browser.

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Reach a machine that has no working operating system: a BIOS screen, a boot menu, a kernel that will not come up. A small ESP32-P4 board plugs into the target's HDMI output and a USB port, and you get its screen, sound, keyboard and mouse in a browser tab, from a laptop, a phone or a tablet. Nothing to install on either end, no cloud, no account.

• Picture through a TC358743 bridge (or the LT6911D on the M5Stack Unit PoE-P4), H.264 over WebRTC or a WebSocket, or MJPEG. It follows the target from an 800x600 firmware screen to a 1080p desktop on its own.
• Sound from HDMI, live in the browser and in recordings.
• Keyboard, mouse and gamepad over USB, as the target sees real ones. The pointer is absolute, so clicks land where you aim.
• Virtual media: disk and CD/DVD images from microSD, to boot or install from.
• Recordings, screenshots and a dashcam on microSD, and the screen as text where the link is too thin for video.
• From anywhere with Tailscale or WireGuard built in, without opening a port.
• HTTPS, a login and two-factor codes, with a certificate the device issues itself.
• Updates itself over the network, into a spare slot, with rollback.

Runs on a dozen boards from Waveshare, Espressif and M5Stack. The list, with what is tested, is on espkvm.io.

ESP-KVM began as a fork of jrowny/p4kvm by Jonathan Rowny. The TC358743 bring-up and the direct MIPI_CSI_BRIDGE programming - the hard, weeks-of-reverse-engineering part - are still the foundation. Everything above them was rewritten. Thank you, Jonathan, for putting it in the open.

A non-commercial, community open-source project.

_{Apache-2.0. Not for the public internet: keep it on a network you trust, or reach it over Tailscale or WireGuard.}