Download UniKey 4.6 RC2

Looking to download UniKey? This guide walks you through everything the most popular Vietnamese typing tool has to offer. UniKey is a small, free input method editor that lets you type Vietnamese characters in any Windows application, from browsers to office software, without installing anything heavy.

It’s built for anyone who writes in Vietnamese on a Windows PC, students, office workers, and developers alike, and it has stayed the default choice for two decades thanks to how fast and reliable it is. Unlike many typing tools, it runs directly on old and new Windows versions alike without extra libraries slowing things down.

Key Features of UniKey

• Supports the three most common Vietnamese input methods: TELEX, VNI, and VIQR, plus a new Simple Telex mode
• Wide character encoding support: Unicode (UTF-8), TCVN3 (ABC), VIQR, VNI, VPS, VISCII, BK HCM1, and BK HCM2
• Per-App On/Off Mode so Vietnamese input can be toggled independently for each application
• Minimalist design with no extra dependencies, so it runs on everything from Windows 9x to Windows 11
• Free and open source under the GNU General Public License
• Fast, stable, and easy on system resources — no background bloat

Screenshot / Demo

How to Install UniKey

1. Download the UniKey ZIP file matching your Windows version (32-bit or 64-bit).
2. Extract the ZIP file to any folder on your computer.
3. Run UniKeyNT.exe directly, no installer or admin rights needed.
4. Choose your preferred input method (Telex or VNI) and character set (Unicode is recommended).
5. Click Close to keep UniKey running in the system tray, ready whenever you need to type Vietnamese.

Enjoy using UniKey!