diff --git a/lib/maintainers.nix b/lib/maintainers.nix
index cb8607cb199..d94bc265bdd 100644
--- a/lib/maintainers.nix
+++ b/lib/maintainers.nix
@@ -167,6 +167,7 @@
   giogadi = "Luis G. Torres <lgtorres42@gmail.com>";
   gleber = "Gleb Peregud <gleber.p@gmail.com>";
   globin = "Robin Gloster <mail@glob.in>";
+  gnidorah = "Alex Ivanov <yourbestfriend@opmbx.org>";
   goibhniu = "Cillian de Róiste <cillian.deroiste@gmail.com>";
   Gonzih = "Max Gonzih <gonzih@gmail.com>";
   gpyh = "Yacine Hmito <yacine.hmito@gmail.com>";
diff --git a/pkgs/applications/networking/instant-messengers/franz/default.nix b/pkgs/applications/networking/instant-messengers/franz/default.nix
new file mode 100644
index 00000000000..3686862527e
--- /dev/null
+++ b/pkgs/applications/networking/instant-messengers/franz/default.nix
@@ -0,0 +1,49 @@
+{ stdenv, fetchurl
+, xorg, gtk2, atk, glib, pango, gdk_pixbuf, cairo, freetype, fontconfig
+, gnome2, dbus, nss, nspr, alsaLib, cups, expat, udev, libnotify }:
+
+stdenv.mkDerivation rec {
+  bits = if stdenv.system == "x86_64-linux" then "x64"
+         else "ia32";
+  version = "4.0.4";
+  name = "franz-${version}";
+  src = fetchurl {
+    url = "https://github.com/meetfranz/franz-app/releases/download/4.0.4/Franz-linux-${bits}-${version}.tgz";
+    sha256 = if bits == "x64" then
+      "0ssym0jfrig474g6j67g1jfybjkxnyhbqqjvrs8z6ihwlyd3rrk5" else
+      "16l9jma2hiwzl9l41yhrwribcgmxca271rq0cfbbm9701mmmciyy";
+  };
+
+  phases = [ "unpackPhase" "installPhase" ];
+
+  deps = with xorg; [
+   gtk2 atk glib pango gdk_pixbuf cairo freetype fontconfig dbus
+   libXi libXcursor libXdamage libXrandr libXcomposite libXext libXfixes
+   libXrender libX11 libXtst libXScrnSaver gnome2.GConf nss nspr alsaLib
+   cups expat stdenv.cc.cc
+
+   udev libnotify
+  ];
+
+  unpackPhase = ''
+    tar xzf $src
+  '';
+
+  installPhase = ''
+    patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" Franz
+    patchelf --set-rpath "$out/share/franz:${stdenv.lib.makeLibraryPath deps}" Franz
+
+    mkdir -p $out/bin $out/share/franz
+    cp -r * $out/share/franz
+    ln -s $out/share/franz/Franz $out/bin
+  '';
+
+  meta = with stdenv.lib; {
+    description = "A free messaging app that combines chat & messaging services into one application";
+    homepage = http://meetfranz.com;
+    license = licenses.free;
+    maintainers = [ stdenv.lib.maintainers.gnidorah ];
+    platforms = ["i686-linux" "x86_64-linux"];
+    hydraPlatforms = [];
+  };
+}
diff --git a/pkgs/applications/networking/instant-messengers/rambox/default.nix b/pkgs/applications/networking/instant-messengers/rambox/default.nix
new file mode 100644
index 00000000000..802c814dbac
--- /dev/null
+++ b/pkgs/applications/networking/instant-messengers/rambox/default.nix
@@ -0,0 +1,45 @@
+{ stdenv, fetchurl
+, xorg, gtk2, atk, glib, pango, gdk_pixbuf, cairo, freetype, fontconfig
+, gnome2, dbus, nss, nspr, alsaLib, cups, expat, udev, libnotify }:
+
+stdenv.mkDerivation rec {
+  bits = if stdenv.system == "x86_64-linux" then "x64"
+         else "ia32";
+  version = "0.4.4";
+  name = "rambox-${version}";
+  src = fetchurl {
+    url = "https://github.com/saenzramiro/rambox/releases/download/${version}/Rambox-${version}-${bits}.tar.gz";
+    sha256 = if bits == "x64" then
+      "05xwabwij7fyifrypahcplymz46k01rzrwgp5gn79hh023w259i0" else
+      "16j17rc8mld96mq1rxnwmxwfa2q5b44s40c56mwh34plqyn546l2";
+  };
+
+  phases = [ "unpackPhase" "installPhase" ];
+
+  deps = with xorg; [
+   gtk2 atk glib pango gdk_pixbuf cairo freetype fontconfig dbus
+   libXi libXcursor libXdamage libXrandr libXcomposite libXext libXfixes
+   libXrender libX11 libXtst libXScrnSaver gnome2.GConf nss nspr alsaLib
+   cups expat stdenv.cc.cc
+
+   udev libnotify
+  ];
+
+  installPhase = ''
+    patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" Rambox
+    patchelf --set-rpath "$out/share/rambox:${stdenv.lib.makeLibraryPath deps}" Rambox
+
+    mkdir -p $out/bin $out/share/rambox
+    cp -r * $out/share/rambox
+    ln -s $out/share/rambox/Rambox $out/bin
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Free and Open Source messaging and emailing app that combines common web applications into one";
+    homepage = http://rambox.pro;
+    license = licenses.mit;
+    maintainers = [ stdenv.lib.maintainers.gnidorah ];
+    platforms = ["i686-linux" "x86_64-linux"];
+    hydraPlatforms = [];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a56f46c3776..61e68f17119 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1680,6 +1680,8 @@ in
 
   fprint_demo = callPackage ../tools/security/fprint_demo { };
 
+  franz = callPackage ../applications/networking/instant-messengers/franz { };
+
   freeipmi = callPackage ../tools/system/freeipmi {};
 
   freetalk = callPackage ../applications/networking/instant-messengers/freetalk { };
@@ -3350,6 +3352,8 @@ in
 
   radvd = callPackage ../tools/networking/radvd { };
 
+  rambox = callPackage ../applications/networking/instant-messengers/rambox { };
+
   ranger = callPackage ../applications/misc/ranger { };
 
   rarcrack = callPackage ../tools/security/rarcrack { };