A computer automatically changes a web page that would otherwise be normally generated by a first application program (such as a web-conferencing tool for example) in a first language (e.g. English), by adding metadata to one or more translatable text strings in the web page. The changed web page is displayed to a human translator by a second application program (e.g. the browser is equipped with a plug-in) to receive translation(s) of the translatable text string(s) into a second language (e.g. French). The translations are used as replacements for the translatable text strings, to create a translated version of the first application program, in the second language.