tonistiigi/binfmt

Health v2 · maintenance only

Adoption not part of the score

1520 stars · 105 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A collection of QEMU user-mode emulator binaries distributed as Docker images that register cross-architecture emulators with the Linux binfmt_misc subsystem. It enables running and building container images for foreign architectures like arm64, riscv64, and s390x on any host.

Use cases

• run arm64 docker images on x86 host
• build multi-architecture container images with buildx
• install qemu emulators for docker
• cross-compile containers for different cpu architectures
• test containers on arm, riscv64, s390x locally
• set up binfmt_misc handlers for foreign binaries

When to choose

• you need to build or run multi-arch Docker images without native hardware
• you use Docker buildx or BuildKit and want automatic QEMU emulation
• you want a simple privileged-container command to install/uninstall emulators

When to avoid

• you need full-system emulation rather than user-mode binary translation
• you cannot run privileged containers on your host
• you need maximum performance for foreign-architecture workloads (native runners are faster)

Facets

cli-tool · maturity active

container-runtime developer-tools cli deployment developer-tools cross-platform cli qemu binfmt-misc emulation multi-arch buildx buildkit containers devops docker linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="tonistiigi/binfmt")