If you cannot change your system font, you can still use Telegram’s to communicate. But for text, nothing beats a proper Unicode font like Khmer OS Siemreap.

Telegram is one of the most popular messaging apps in Cambodia, thanks to its speed, security, and support for large groups and channels. However, many Khmer users face a common issue: text not displaying correctly — appearing as boxes, broken characters, or inconsistent spacing. The solution often lies in using a well-designed, system-compatible font like Khmer OS Siemreap . What is Khmer OS Siemreap? Khmer OS Siemreap is a free, open-source Unicode-compliant Khmer font. It is part of the Khmer Operating System font collection, developed by Cambodian software engineer Danh Hong and contributors. The font is named after the famous temple city of Siem Reap.