Phonpad
PhonPad is an online IPA transcription editor. You can click on any symbol in this page and it will be inserted into the box; if you only need standard symbols for a specific language, you can use the tab to the right of the editor, otherwise you should click buttons below to open tabs with the complete set of IPA symbols. You can then copy the text and paste it in an email, Word document or other: you may need to select an adequate font (e.g. Doulos SIL, Charis SIL, DejaVu Sans, Lucida Sans Unicode or Gentium).
Licence: This is GPL software developed by Paolo Mairano, you are free to use it and modify it as you wish.