diff --git a/pkgs/tools/graphics/welkin/default.nix b/pkgs/tools/graphics/welkin/default.nix
new file mode 100644
index 000000000000..0076b2a4a862
--- /dev/null
+++ b/pkgs/tools/graphics/welkin/default.nix
@@ -0,0 +1,59 @@
+x@{builderDefsPackage
+  , jre
+  , ...}:
+builderDefsPackage
+(a :  
+let 
+  helperArgNames = ["stdenv" "fetchurl" "builderDefsPackage"] ++ 
+    ["jre"];
+
+  buildInputs = map (n: builtins.getAttr n x)
+    (builtins.attrNames (builtins.removeAttrs x helperArgNames));
+  sourceInfo = rec {
+    baseName="welkin";
+    version="1.1";
+    name="${baseName}-${version}";
+    url="http://simile.mit.edu/dist/welkin/${name}.tar.gz";
+    hash="0hr2xvfz887fdf2ysiqydv6m13gbdl5x0fh4960i655d5imvd5x0";
+  };
+in
+rec {
+  src = a.fetchurl {
+    url = sourceInfo.url;
+    sha256 = sourceInfo.hash;
+  };
+
+  inherit (sourceInfo) name version;
+  inherit buildInputs;
+
+  /* doConfigure should be removed if not needed */
+  phaseNames = ["doDeploy" "createBin"];
+
+  doDeploy = a.simplyShare "welkin";
+
+  createBin = a.fullDepEntry ''
+    ensureDir "$out/bin"
+    echo "#! ${a.stdenv.shell}" > "$out/bin/welkin"
+    echo "export JAVA_HOME=${jre}" >> "$out/bin/welkin"
+    echo "\"$out/share/welkin/welkin.sh\" \"\$@\"" >> "$out/bin/welkin"
+    sed -e 's@[.]/lib/welkin[.]jar@"'"$out"'/share/welkin/lib/welkin.jar"@' -i "$out/share/welkin/welkin.sh"
+    chmod a+x "$out/bin/welkin"
+  '' ["minInit" "defEnsureDir"];
+      
+  meta = {
+    description = "An RDF visualizer";
+    maintainers = with a.lib.maintainers;
+    [
+      raskin
+    ];
+    platforms = with a.lib.platforms;
+      [];
+    license = "free-noncopyleft";
+  };
+  passthru = {
+    updateInfo = {
+      downloadPage = "http://simile.mit.edu/dist/welkin/";
+    };
+  };
+}) x
+
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1f34f378c1f4..afbdea3c433a 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1391,6 +1391,8 @@ let
 
   vtun = callPackage ../tools/networking/vtun { };
 
+  welkin = callPackage ../tools/graphics/welkin {};
+
   testdisk = callPackage ../tools/misc/testdisk { };
 
   htmlTidy = callPackage ../tools/text/html-tidy { };