Help:Multilingual support (Indic)
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This is an information page.
It is not one of Wikipedia's policies or guidelines, but rather intends to describe some aspect(s) of Wikipedia's norms, customs, technicalities, or practices. It may reflect varying levels of consensus and vetting.
Several pages on Wikipedia use Indic scripts to illustrate the native representation of names, places, quotes and literature. Unicode is the encoding used on Wikipedia and it contains support for a number of Indic scripts. However, before Indic scripts can be viewed or edited, support for complex text layout must be enabled on your operating system, otherwise mojibake will appear. Some older operating systems do not support complex text rendering and you should not use such systems to edit Indic scripts.
This page lists the methods for enabling complex text rendering based on the operating environment or browser you are using. Many of the methods highlighted can also be used for non-Indic complex scripts such as Arabic.