diff --git a/tools/Makefile b/tools/Makefile
index 3ac9b9b58..8f30c125e 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -28,6 +28,7 @@ tools-y += firmware-utils patch-image quilt padjffs2
 tools-y += mm-macros missing-macros cmake scons bc findutils gengetopt patchelf
 tools-y += mtools dosfstools libressl
 tools-$(CONFIG_TARGET_orion_generic) += wrt350nv2-builder upslug2
+tools-y += ucl upx
 tools-$(CONFIG_TARGET_x86) += qemu
 tools-$(CONFIG_EFI_IMAGES) += gptfdisk popt
 tools-$(CONFIG_TARGET_mxs) += elftosb sdimage
diff --git a/tools/ucl/Makefile b/tools/ucl/Makefile
new file mode 100644
index 000000000..9fb9aec11
--- /dev/null
+++ b/tools/ucl/Makefile
@@ -0,0 +1,51 @@
+#
+# Copyright (C) 2019 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ucl
+PKG_VERSION:=1.03
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=http://www.oberhumer.com/opensource/ucl/download/$(PKG_SOURCE)
+PKG_HASH:=b865299ffd45d73412293369c9754b07637680e5c826915f097577cd27350348
+
+HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)-$(PKG_VERSION)
+
+include $(INCLUDE_DIR)/host-build.mk
+
+HOSTCC :=gcc
+HOST_CFLAGS +=-std=gnu89
+
+define Host/Prepare
+	$(Host/Prepare/Default)
+	mkdir -p $(STAGING_DIR_HOST)/include/ucl
+endef
+
+define Host/Configure
+	(cd $(HOST_BUILD_DIR); \
+	CC="$(HOSTCC)" \
+	CFLAGS="$(HOST_CFLAGS)" \
+	./configure --prefix=$(STAGING_DIR_HOST) \
+	);
+	$(call Host/Configure/Default)
+endef
+
+define Host/Compile
+	$(MAKE) -C $(HOST_BUILD_DIR)
+endef
+
+define Host/Install
+	$(MAKE) -C $(HOST_BUILD_DIR) install
+endef
+
+define Host/Clean
+	$(MAKE) -C $(HOST_BUILD_DIR) uninstall
+	rm -rf $(HOST_BUILD_DIR)
+	rm -rf $(STAGING_DIR_HOST)/include/ucl
+endef
+
+$(eval $(call HostBuild))
diff --git a/tools/upx/Makefile b/tools/upx/Makefile
new file mode 100644
index 000000000..39ddae033
--- /dev/null
+++ b/tools/upx/Makefile
@@ -0,0 +1,37 @@
+#
+# Copyright (C) 2011-2020 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=upx
+PKG_VERSION:=3.96
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-src.tar.xz
+PKG_SOURCE_URL:=https://github.com/upx/upx/releases/download/v$(PKG_VERSION)
+PKG_HASH:=47774df5c958f2868ef550fb258b97c73272cb1f44fe776b798e393465993714
+
+HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)-$(PKG_VERSION)-src
+
+include $(INCLUDE_DIR)/host-build.mk
+
+UPX_UCLDIR := $(BUILD_DIR_HOST)/ucl-1.03
+
+define Host/Compile
+	UPX_UCLDIR=$(UPX_UCLDIR) \
+	$(MAKE) -C $(HOST_BUILD_DIR)/src \
+		CXXFLAGS_WERROR="" LDFLAGS="$(HOST_LDFLAGS)" \
+		CXX="$(HOSTCXX)"
+endef
+
+define Host/Install
+	$(CP) $(HOST_BUILD_DIR)/src/upx.out $(STAGING_DIR_HOST)/bin/upx
+endef
+
+define Host/Clean
+	rm -f $(STAGING_DIR_HOST)/bin/upx
+endef
+
+$(eval $(call HostBuild))