Many English teachers use the following websites and software on a regular basis.
Make sure you aren’t missing this!
PDFescape.com: This is a very useful website which allows you to upload a pdf file, work on it and save your work for later use. You can type text, insert shapes and pictures, delete and rotate pages in pdf files and do many more things on your pdf files. It’s a great tool to make an answer key for scans, photocopies and the like.
Media.io: Easily convert audio and other media files to mp3. Free and no registration required.
Cambridge dictionaries: You can look up any word an integrate their widgets in your Moodle or website.
Voki: You can type text and hear it pronounced in English and in many other languages. Different accents available. You can send or share the output.