1. A computer-implemented method comprising: receiving, at a computing device having one or more processors, a message template to be translated from a source language to a target language, the message template including a text portion and one or more template placeholders, whereby the message template is used to generate a customized output message by replacing the one or more template placeholders with customized content; parsing, at the computing device, the message template to identify the text portion and the one or more template placeholders; generating, at the computing device, one or more non-editable objects, each of the one or more non-editable objects corresponding to one of the one or more template placeholders; associating each one of the one or more non-editable objects to its corresponding template placeholder of the one or more template placeholders; generating, at the computing device, a display message template by replacing each of the one or more template placeholders with its associated non-editable object in the message template, the display message template including the text portion to be translated; providing, from the computing device, the display message template to a user device; providing, for display at the user device, an environment that includes a first portion that displays the display message template, including the one or more template placeholders, and a second portion that receives text input from the user, wherein the user enters a translated text portion at the second portion, the translated text portion being in the target language and corresponding to the text portion. receiving, at the computing device, a translated display message template from the user device, the translated message including the translated text portion and the one or more non-editable objects; and generating, at the computing device, a translated message template based on the translated display message template, the translated message template including the translated text portion and the one or more template placeholders.