QEMU Config Builder — HTML5 All-in-One

Comprehensive UI for building qemu-system commands. Frontend-only: generates commands, simulates VM state, and exports scripts. Use a backend to run VMs on a host.

Quick Options & Actions

Architecture Machine Type Memory (MB) CPUs VGA KVM

State: stopped

Profiles & saved configs

Notes:

This UI generates qemu-system command lines based on your selections. It does not run QEMU itself — to run, copy the generated command to a QEMU host and ensure file paths point to host-readable images.
Sound device names and machine types differ across QEMU versions. Use qemu-system-x86_64 -machine help and -soundhw ? on your host to confirm names if needed.
To actually control VMs remotely, implement a backend to accept uploads and execute commands securely (and integrate QMP or libvirt for safe operations).

Detailed VM Configuration

Sound Cards (select one or more)

The builder supports legacy -soundhw flags, modern -device models, and placeholders. Pick any combination; review the generated command since some QEMU versions differ.

Hard Disks (HDA, HDB, HDC, HDD)

Up to 4 IDE-style disks. Choose file(s) on your client — filenames are used as placeholders in the generated command. Supported formats: QCOW2, VHD, VDI, VMDK, IMG.

Removable ROM / ISO

ISO file Attach ISO as

Advanced & Extras

Boot order Example: "dc" (disk then cdrom), use letters: a=floppy, b=disk (IDE/virtio), c? (not standardized), d=cdrom Network Extra args

Generated QEMU Command

# Press "Start" to generate a QEMU command

Note: This UI is client-side only. Replace local filenames with host paths on the machine that will run QEMU.