diff --git a/sys-devel/qbe/Manifest b/sys-devel/qbe/Manifest
index 5c0cb185c2782..efacf8892fa68 100644
--- a/sys-devel/qbe/Manifest
+++ b/sys-devel/qbe/Manifest
@@ -1 +1,2 @@
 DIST qbe-1.2.tar.xz 246364 BLAKE2B b4cf4562caf6db191f1b2bfd078e2dfebfbe526a454552691ff78fba7b2d6c27b09df8ea5c795b49b9509a73b6981c17684d6e887999878f6e5bc7923c5047ef SHA512 b3ffd172e95346b3bfae1d2aff4c22a32af8bd4443d073f6fbb711f41db01f072ca7a8108901508cd4a8366567dab46510e0438716d35548591fdf37cee49971
+DIST qbe-1.3.tar.xz 281332 BLAKE2B 16e5276733d0676c7e323870fd0624484dbe46b8211da172ad179e78988cdf2b06c02ec227b1283f409df72d30405785e9c4c030c246611fae1f7b1092b66efe SHA512 5e601d62fb1a3caa6faa82b21651799459b649fa08b06c291f103118aab22a85823ee43526df1078a1d993b0bfe88e5ef14599fa6578b39900e968bc27128b8f
diff --git a/sys-devel/qbe/qbe-1.3.ebuild b/sys-devel/qbe/qbe-1.3.ebuild
new file mode 100644
index 0000000000000..d9f1524e9ec63
--- /dev/null
+++ b/sys-devel/qbe/qbe-1.3.ebuild
@@ -0,0 +1,92 @@
+# Copyright 2021-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=9
+
+inherit toolchain-funcs
+
+if [[ ${PV} == 9999 ]]; then
+	EGIT_REPO_URI="git://c9x.me/qbe.git"
+	inherit git-r3
+else
+	SRC_URI="https://c9x.me/compile/release/${P}.tar.xz"
+
+	# 64-bit RISC-V only
+	KEYWORDS="~amd64 ~arm64 ~riscv"
+fi
+
+DESCRIPTION="Pure-C embeddable compiler backend"
+HOMEPAGE="https://c9x.me/compile/"
+
+LICENSE="MIT"
+SLOT="0"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+# For qbe in targets like x86_64-w64-mingw32
+BDEPEND="test? ( elibc_mingw? ( virtual/wine ) )"
+
+DOCS=( README doc )
+
+src_prepare() {
+	default
+
+	sed -i 's;^CC *=.*;CC ?= cc;' Makefile || die
+
+	# Needs to exec test binaries and /tmp can be mounted noexec
+	sed -i "s;^tmp=/tmp/;tmp=${T}/;" tools/test.sh || die
+
+	if use elibc_mingw; then
+		# MinGW-gcc `-o qbe` forces filename to qbe.exe instead of qbe
+		sed -i 's,qbe,qbe.exe,g' Makefile || die
+
+		# same .exe adjusment, and need wine to run qbe.exe in our case
+		sed -i \
+			-e '/^	bin=/s,qbe,qbe.exe,' \
+			-e '/	amd64_win[)]/,/	""[)]/s,bin=",bin="wine ,' \
+			tools/test.sh || die
+	fi
+}
+
+src_configure() {
+	# qbe's Makefile uses uname(1), leading to wrong default
+	# target when cross-compiling
+	if use elibc_Darwin; then
+		case ${CTARGET:-$CHOST} in
+		*aarch64*) echo '#define Deftgt T_arm64_apple' ;;
+		*x86_64*) echo '#define Deftgt T_amd64_apple' ;;
+		*) die "Unsupported target ${CTARGET:-$CHOST}" ;;
+		esac
+	elif use elibc_mingw; then
+		case ${CTARGET:-$CHOST} in
+		*x86_64*) echo '#define Deftgt T_amd64_win' ;;
+		*) die "Unsupported target ${CTARGET:-$CHOST}" ;;
+		esac
+	else
+		case ${CTARGET:-$CHOST} in
+		*aarch64*) echo '#define Deftgt T_arm64' ;;
+		*riscv64*) echo '#define Deftgt T_rv64' ;;
+		*x86_64*) echo '#define Deftgt T_amd64_sysv' ;;
+		*) die "Unsupported target ${CTARGET:-$CHOST}" ;;
+		esac
+	fi > config.h || die
+}
+
+src_compile() {
+	tc-export CC
+
+	emake CFLAGS="-std=c99 ${CPPFLAGS} ${CFLAGS}"
+}
+
+src_test() {
+	if use elibc_mingw; then
+		TARGET=amd64_win default
+	else
+		default
+	fi
+}
+
+src_install() {
+	einstalldocs
+	emake install DESTDIR="${ED}" PREFIX=/usr
+}
diff --git a/sys-devel/qbe/qbe-9999.ebuild b/sys-devel/qbe/qbe-9999.ebuild
index 8800560bb2844..d9f1524e9ec63 100644
--- a/sys-devel/qbe/qbe-9999.ebuild
+++ b/sys-devel/qbe/qbe-9999.ebuild
@@ -1,7 +1,7 @@
 # Copyright 2021-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=8
+EAPI=9
 
 inherit toolchain-funcs
 
@@ -20,6 +20,11 @@ HOMEPAGE="https://c9x.me/compile/"
 
 LICENSE="MIT"
 SLOT="0"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+# For qbe in targets like x86_64-w64-mingw32
+BDEPEND="test? ( elibc_mingw? ( virtual/wine ) )"
 
 DOCS=( README doc )
 
@@ -30,6 +35,17 @@ src_prepare() {
 
 	# Needs to exec test binaries and /tmp can be mounted noexec
 	sed -i "s;^tmp=/tmp/;tmp=${T}/;" tools/test.sh || die
+
+	if use elibc_mingw; then
+		# MinGW-gcc `-o qbe` forces filename to qbe.exe instead of qbe
+		sed -i 's,qbe,qbe.exe,g' Makefile || die
+
+		# same .exe adjusment, and need wine to run qbe.exe in our case
+		sed -i \
+			-e '/^	bin=/s,qbe,qbe.exe,' \
+			-e '/	amd64_win[)]/,/	""[)]/s,bin=",bin="wine ,' \
+			tools/test.sh || die
+	fi
 }
 
 src_configure() {
@@ -41,6 +57,11 @@ src_configure() {
 		*x86_64*) echo '#define Deftgt T_amd64_apple' ;;
 		*) die "Unsupported target ${CTARGET:-$CHOST}" ;;
 		esac
+	elif use elibc_mingw; then
+		case ${CTARGET:-$CHOST} in
+		*x86_64*) echo '#define Deftgt T_amd64_win' ;;
+		*) die "Unsupported target ${CTARGET:-$CHOST}" ;;
+		esac
 	else
 		case ${CTARGET:-$CHOST} in
 		*aarch64*) echo '#define Deftgt T_arm64' ;;
@@ -57,6 +78,14 @@ src_compile() {
 	emake CFLAGS="-std=c99 ${CPPFLAGS} ${CFLAGS}"
 }
 
+src_test() {
+	if use elibc_mingw; then
+		TARGET=amd64_win default
+	else
+		default
+	fi
+}
+
 src_install() {
 	einstalldocs
 	emake install DESTDIR="${ED}" PREFIX=/usr