diff --git a/pkgs/applications/networking/charles/default.nix b/pkgs/applications/networking/charles/default.nix
new file mode 100644
index 000000000000..c71237b21600
--- /dev/null
+++ b/pkgs/applications/networking/charles/default.nix
@@ -0,0 +1,64 @@
+{ stdenv, fetchurl, makeDesktopItem, jre, hicolor-icon-theme }:
+
+let
+  desktopItem = makeDesktopItem {
+    categories = "Network;Development;WebDevelopment;Java;";
+    desktopName = "Charles";
+    exec = "charles %F";
+    genericName  = "Web Debugging Proxy";
+    icon = "charles";
+    mimeType = "application/x-charles-savedsession;application/x-charles-savedsession+xml;application/x-charles-savedsession+json;application/har+json;application/vnd.tcpdump.pcap;application/x-charles-trace";
+    name = "Charles";
+    startupNotify = "true";
+  };
+
+in stdenv.mkDerivation rec {
+  name = "charles-${version}";
+  version = "4.2.6";
+
+  src = fetchurl {
+    url = "https://www.charlesproxy.com/assets/release/${version}/charles-proxy-${version}.tar.gz";
+    sha256 = "1hjfimyr9nnbbxadwni02d2xl64ybarh42l1g6hlslq5qwl8ywzb";
+  };
+
+  installPhase = ''
+    set -e
+
+    mkdir -pv $out/bin
+
+    for fn in lib/*.jar; do
+      install -D -m644 $fn $out/$fn
+    done
+
+    cat > $out/bin/charles << EOF
+    #!${stdenv.shell}
+
+    ${jre}/bin/java -Xmx1024M -Dcharles.config="~/.charles.config" -Djava.library.path="$out/lib" -jar $out/lib/charles.jar $*
+    EOF
+
+    chmod +x $out/bin/charles
+
+    mkdir -p $out/share/applications
+    ln -s ${desktopItem}/share/applications/* $out/share/applications/
+
+    for dim in 16x16 32x32 64x64 128x128 256x256 512x512; do
+      install -D -m644 icon/$dim/apps/charles-proxy.png \
+        $out/share/icons/hicolor/$dim/apps/charles.png
+      for mimetype in application-har+json.png application-vnd.tcpdump.pcap.png application-x-charles-savedsession.png application-x-charles-trace.png; do
+        install -D -m644 icon/$dim/mimetypes/$mimetype \
+          $out/share/icons/hicolor/$dim/mimetypes/$mimetype
+      done
+    done
+
+    install -D -m644 doc/licenses/bounce-license.txt \
+      $out/share/licenses/bounce-license.txt
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Web Debugging Proxy";
+    homepage = https://www.charlesproxy.com/;
+    maintainers = [ maintainers.kalbasit ];
+    license = stdenv.lib.licenses.unfree;
+    platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 47e54f0f804e..fe4836fb713b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -848,6 +848,8 @@ with pkgs;
 
   bluemix-cli = callPackage ../tools/admin/bluemix-cli { };
 
+  charles = callPackage ../applications/networking/charles { };
+
   libqmatrixclient = libsForQt5.callPackage ../development/libraries/libqmatrixclient { };
 
   quaternion = libsForQt5.callPackage ../applications/networking/instant-messengers/quaternion { };
@@ -3718,7 +3720,7 @@ with pkgs;
   lzip = callPackage ../tools/compression/lzip { };
 
   luxcorerender = callPackage ../tools/graphics/luxcorerender { };
-  
+
   xz = callPackage ../tools/compression/xz { };
 
   lz4 = callPackage ../tools/compression/lz4 { };
@@ -4987,7 +4989,7 @@ with pkgs;
   securefs = callPackage ../tools/filesystems/securefs { };
 
   seexpr = callPackage ../development/compilers/seexpr { };
- 
+
   setroot = callPackage  ../tools/X11/setroot { };
 
   setserial = callPackage ../tools/system/setserial { };