diff --git a/convert.sh b/convert.sh
old mode 100644
new mode 100755
index 2e4c124..7f86824
--- a/convert.sh
+++ b/convert.sh
@@ -6,8 +6,10 @@ if [ -f `dirname $0`/convert_ve_plugin ]; then
   . `dirname $0`/convert_ve_plugin
 fi
 
-if [ -f `dirname $0`/convert_config_linux ]; then
+if [ -f `dirname $0`/convert_config_linux ] && [ `uname` == "Linux" ]; then
   . `dirname $0`/convert_config_linux
+elif [ -f `dirname $0`/convert_config_macos ] && [ `uname` == "Darwin" ]; then
+  . `dirname $0`/convert_config_macos
 else
   VIRTUAL_EDITIONS_LIST="CoreSingleLanguage Enterprise EnterpriseN Education \
   EducationN ProfessionalEducation ProfessionalEducationN \
@@ -266,7 +268,11 @@ if [ "$1" == "-?" -o "$1" == "--help" -o "$1" == "-h" ]; then
   echo "0 - do not create virtual editions (default)"
   echo "1 - create virtual edtitions"
   echo ""
-  echo -e "${infoColor}convert_config_linux file${resetColor}"
+  if [ `uname` == "Linux" ]; then
+    echo -e "${infoColor}convert_config_linux file${resetColor}"
+  elif [ `uname` == "Darwin" ]; then
+    echo -e "${infoColor}convert_config_macos file${resetColor}"
+  fi
   echo "This file can be used to configure some advanced options of this script."
   echo "It is required to place configuration in the same directory as script."
   echo ""
@@ -284,16 +290,26 @@ fi
 if ! which cabextract >/dev/null 2>&1 \
 || ! which wimlib-imagex >/dev/null 2>&1 \
 || ! which chntpw >/dev/null 2>&1 \
-|| ! which genisoimage >/dev/null 2>&1; then
+|| ! which genisoimage >/dev/null 2>&1 \
+&& ! which mkisofs >/dev/null 2>&1; then
   echo "One of required applications is not installed."
   echo "The following applications need to be installed to use this script:"
   echo " - cabextract"
   echo " - wimlib-imagex"
   echo " - chntpw"
-  echo " - genisoimage"
+  echo " - genisoimage or mkisofs"
   echo ""
-  echo "If you use Debian or Ubuntu you can install these using:"
-  echo "sudo apt-get install cabextract wimtools chntpw genisoimage"
+  if [ `uname` == "Linux" ]; then
+    # Linux
+    echo "If you use Debian or Ubuntu you can install these using:"
+    echo "sudo apt-get install cabextract wimtools chntpw genisoimage"
+  elif [ `uname` == "Darwin" ]; then
+    # macOS
+    echo "macOS requires Homebrew (https://brew.sh) to install the prerequisite software."
+    echo "If you use Homebrew, you can install these using:"
+    echo "brew tap sidneys/homebrew"
+    echo "brew install cabextract wimlib cdrtools sidneys/homebrew/chntpw"
+  fi
   exit 1
 fi
 
@@ -363,7 +379,7 @@ fi
 
 list=
 
-lang=$(grep -i "_..-.*.esd" <<< "$metadataFiles" | head -1 | sed 's/.*_//g;s/.esd//gi')
+lang=$(grep -i "_..-.*.esd" <<< "$metadataFiles" | head -1 | tr '[:upper:]' '[:lower:]' | sed 's/.*_//g;s/.esd//g')
 metadataFiles=$(grep -i "$lang" <<< "$metadataFiles" | sort | uniq)
 firstMetadata=$(head -1 <<< "$metadataFiles")
 
@@ -555,7 +571,13 @@ fi
 echo -e "$infoColor""Creating ISO image...""$resetColor"
 find ISODIR -exec touch {} +
 
-genisoimage -b "boot/etfsboot.com" --no-emul-boot \
+# Use mkisofs as fallback to genisoimage
+genisoimage="$(command -v genisoimage)"
+if [ -z "$genisoimage" ]; then
+  genisoimage="$(command -v mkisofs)"
+fi
+
+"$genisoimage" -b "boot/etfsboot.com" --no-emul-boot \
   --eltorito-alt-boot -b "efi/microsoft/boot/efisys.bin" --no-emul-boot \
   --udf --hide "*" -V "$isoLabel" -o "$isoName" ISODIR
 
diff --git a/readme.md b/readme.md
index 39e08fb..af5c239 100644
--- a/readme.md
+++ b/readme.md
@@ -2,7 +2,7 @@ UUP converter
 -------------
 
 ### Description
-A basic UUP converter aimed for Linux users who don't have access to any
+A basic UUP converter aimed at Linux and macOS users who don't have access to any
 Windows machine, but want or need to create an ISO image for latest Windows
 Insider version downloaded from UUP dump.
 
@@ -50,7 +50,7 @@ option.
 
 ### Configuration file
 Configuration of advanced script options can be modified using
-convert_config_linux file.
+the file `convert_config_linux` (on Linux) or `convert_config_macos` (on macOS).
 
 ###### Configuration options
 ```
@@ -66,14 +66,25 @@ This script uses the following commands to do its work:
  * cabextract - to extract cabs
  * wimlib-imagex - to export files from metadata ESD
  * chntpw - to modify registry of first index of boot.wim
- * genisoimage - to create ISO image
+ * genisoimage or mkisofs - to create ISO image
 
+###### Linux
 If you use Debian or Ubuntu based distribution you can quickly install these
 using the following command:
 
-```
+```bash
 sudo apt-get install cabextract wimtools chntpw genisoimage
 ```
 
 If you use any other distribution, then you will need to check its repository
 for packages needed to run this script.
+
+###### macOS
+macOS requires [Homebrew](https://brew.sh) to install the prerequisite software.
+After Homebrew was installed, you can install the requirements using:
+
+```bash
+brew tap sidneys/homebrew
+brew install cabextract wimlib cdrtools sidneys/homebrew/chntpw
+```
+