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+## Installing
+
+CyberChef uses the Grunt build system, so it's very easy to install. You'll need to carry out the following steps to get going:
+
+ 1. Install Git
+ 2. Install Node.js and its package manager, npm
+ 3. Install Grunt: `npm install -g grunt-cli`
+ 4. `git clone https://github.com/gchq/CyberChef.git`
+ 5. `cd CyberChef`
+ 6. `npm install`
+
+npm will then install all the dependencies needed by Grunt.
+
+
+## Compiling
+
+Grunt has been configured with several tasks to aid in the development process:
+
+```
+grunt dev
+```
+Use this when developing new functionality. It will launch a persistent task which will automatically build an uncompressed, development version of CyberChef located in `build/dev`. Whenever a source file is modified, the development version will be rebuilt.
+
+```
+grunt prod
+```
+When you are ready to create a production build, run this command. It will lint, concatenate, and compress all the source files and create a production-ready build in `build/prod`. It will also create the inline version of CyberChef at the same location.
+
+```
+grunt stats
+```
+This command will give you statistics about the code base such as how many lines there are as well as details of file sizes before and after compression.
+
+```
+grunt docs
+```    
+This will build the codebase documentation and place it in the `docs` directory.
+
+
+## Repository structure
+
+ - `build/`
+     - `dev/` - This will be populated with an uncompressed development build of CyberChef by running the `grunt dev` command.
+     - `prod/` - This folder contains the most recently built production version of CyberChef including the inline version. It is populated by running `grunt prod`.
+ - `src/`
+     - `css/`
+         - `lib/` - Various library CSS files
+         - `structure/` - Structural styles to lay out the stage
+         - `themes/` - Look and feel styles
+     - `html/`
+         - `index.html` - The CyberChef page structure
+     - `js/`
+         - `config/` - Files specifying the operation configurations
+         - `core/` - Core CyberChef files that make up the heart of the application
+         - `lib/` - Libraries... oh so many libraries...
+         - `operations/` - Operation objects
+         - `views/` - Code to handle the various CyberChef views
+             - `html/` - The code which makes up the CyberChef web app
+     - `static/` - Static files like images
+ - `docs/` - Codebase documentation, populated by running `grunt docs`.
+ - `Gruntfile.js` - Grunt build process configuration
+ - `LICENSE` - The Apache 2.0 licence information
+ - `package.json` - npm configuration and a list of all the dependencies
+ - `README.md` - An introduction to CyberChef