diff --git a/x11/Makefile b/x11/Makefile
index 9819d76090e8..560e7eeff604 100644
--- a/x11/Makefile
+++ b/x11/Makefile
@@ -66,6 +66,7 @@
     SUBDIR += fireflies
     SUBDIR += fixesproto
     SUBDIR += florence
+    SUBDIR += flruler
     SUBDIR += fluxbg
     SUBDIR += fpc-x11
     SUBDIR += fstobdf
diff --git a/x11/flruler/Makefile b/x11/flruler/Makefile
new file mode 100644
index 000000000000..daf9005da4cb
--- /dev/null
+++ b/x11/flruler/Makefile
@@ -0,0 +1,46 @@
+# Created by: Alexey Dokuchaev <danfe@FreeBSD.org>
+# $FreeBSD$
+
+PORTNAME=	flruler
+PORTVERSION=	1.05
+CATEGORIES=	x11
+MASTER_SITES=	http://seriss.com/people/erco/fltk/flruler/
+
+MAINTAINER=	danfe@FreeBSD.org
+COMMENT=	On-screen pixel ruler
+
+LICENSE=	GPLv2
+
+BUILD_DEPENDS=	${LOCALBASE}/lib/libfltk.a:x11-toolkits/fltk
+
+USES=		gmake perl5
+USE_PERL5=	build
+USE_XORG=	x11 xcursor xext xfixes xft xinerama
+
+PLIST_FILES=	bin/flruler man/man1/flruler.1.gz \
+		share/icons/hicolor/128x128/apps/flruler.png
+PORTDOCS=	*
+
+DESKTOP_ENTRIES=	"Flruler" "${COMMENT}" "${PORTNAME}.png" \
+			"${PORTNAME}" "Utility;" false
+
+OPTIONS_DEFINE=	DOCS
+
+post-patch:
+# New windows won't get created with zero width and height for some reason
+	@${REINPLACE_CMD} -e 's/,0,0/,1,1/' ${WRKSRC}/flruler.C
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/${PORTNAME} ${STAGEDIR}${PREFIX}/bin
+	${INSTALL_DATA} ${WRKSRC}/docs/${PORTNAME}.1 \
+		${STAGEDIR}${MANPREFIX}/man/man1
+	@${MKDIR} ${STAGEDIR}${PREFIX}/share/icons/hicolor/128x128/apps
+	${INSTALL_DATA} ${WRKSRC}/misc/flruler-icon.png \
+		${STAGEDIR}${PREFIX}/share/icons/hicolor/128x128/apps/${PORTNAME}.png
+
+do-install-DOCS-on:
+	@${MKDIR} ${STAGEDIR}${DOCSDIR}
+	cd ${WRKSRC} && ${INSTALL_DATA} CHANGES.txt TODO.txt \
+		docs/${PORTNAME}.html ${STAGEDIR}${DOCSDIR}
+
+.include <bsd.port.mk>
diff --git a/x11/flruler/distinfo b/x11/flruler/distinfo
new file mode 100644
index 000000000000..70af7fb1c748
--- /dev/null
+++ b/x11/flruler/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1470190812
+SHA256 (flruler-1.05.tar.gz) = ece02a65bb408eaa83e46e0359bb1d8c07852b331f6f59975d8ae06c7197faaf
+SIZE (flruler-1.05.tar.gz) = 25842
diff --git a/x11/flruler/files/patch-Makefile b/x11/flruler/files/patch-Makefile
new file mode 100644
index 000000000000..2026b700cfa5
--- /dev/null
+++ b/x11/flruler/files/patch-Makefile
@@ -0,0 +1,30 @@
+--- Makefile.orig	2016-08-03 02:19:58 UTC
++++ Makefile
+@@ -2,15 +2,13 @@
+ SHELL=/bin/sh
+ VERSION=$(shell awk '/^[0-9]*\.[^ \t]/ {print $$1; exit(0);}' CHANGES.txt)
+ 
+-FLTK_DIR=/usr/local/src/fltk-1.3.x-svn
+-
+ # FLTK BUILD 
+-CXX      = $(shell $(FLTK_DIR)/fltk-config --cxx)
+-CC       = $(shell $(FLTK_DIR)/fltk-config --cxx)
++CXX      = $(shell fltk-config --cxx)
++CC       = $(shell fltk-config --cxx)
+ DEBUG    = -g
+-CXXFLAGS = $(shell $(FLTK_DIR)/fltk-config --cxxflags ) -I. -DVERSION=\"$(VERSION)\" -Wall
++CXXFLAGS = $(shell fltk-config --cxxflags ) -I. -DVERSION=\"$(VERSION)\" -Wall
+ CFLAGS   = -Wall
+-LDLIBS   = $(shell $(FLTK_DIR)/fltk-config --ldstaticflags )
++LDLIBS   = $(shell fltk-config --ldstaticflags )
+ LINK     = $(CXX)
+ OS       = $(shell uname -s)
+ 
+@@ -30,7 +28,6 @@ all: flruler docs
+ 
+ flruler: flruler.o
+ 	$(LINK) flruler.o -o flruler $(LDLIBS) 
+-	strip flruler
+ ifeq ($(OS),Darwin)
+ 	echo Creating flruler.app
+ 	rm -rf flruler.app
diff --git a/x11/flruler/pkg-descr b/x11/flruler/pkg-descr
new file mode 100644
index 000000000000..1022cc79a305
--- /dev/null
+++ b/x11/flruler/pkg-descr
@@ -0,0 +1,9 @@
+A program for measuring the pixel size of on-screen elements. Intended for
+GUI debugging to verify widget separations and sizes, though may also be
+used for general computer graphics debugging purposes, including measuring
+pixel distances of images, web applications, etc.
+
+You can easily make copies of the ruler and reoriented it via either the
+keyboard or mouse.
+
+WWW: http://seriss.com/people/erco/fltk/flruler/