Editors
- Counterparts Lite (Mac App)
- POEditor (Web App)
- brightec Online XLIFF Editor (Web App)
Seconding do NOT use the editor from Brightec. You are navigated away from your translations entry page and they hold the data hostage so you will lose all your work unless you give them your Twitter account. They also do not support Angular translations.
Poedit supports XLIFF since v2.2, including Angular files (GitHub issue: vslavik/poedit#408).
Loca Studio supports the XLIFF 1.2 files exported by Xcode.
(full disclosure: I am the lead developer)
So in conclusion, no free tool exists that lets you edit , create and update translations files using xliff format.
Don't use the online editor at Brightec (http://xliff.brightec.co.uk/). After spending valuable time translating, you will be forced to use your Twitter login to get your translated file. The login prompt states:
This application will be able to: