Convert Unicode to UTF-16
Convert Unicode Text to UTF-16 Instantly
Processing text for low-level systems often fails because systems read bytes differently. This tool acts as a bridge, re-encoding your text strings into UTF-16 Code Units compatible with Java, Windows API, and legacy environments.
How to Convert Text
- Enter Text: Paste your string, special symbols, or emojis into the input box.
- Configure Byte Order: Select Big Endian (BE) or Little Endian (LE) depending on your target system architecture.
- Copy & Export: The tool instantly calculates the Surrogate Pairs and generates the HEX or Binary output.
Why Direct Copy-Paste Fails
Standard web text is typically encoded in UTF-8, which uses variable-length 8-bit sequences. However, internal systems like the **Windows Kernel** and **Java Virtual Machine (JVM)** operate on **UTF-16**, which uses fixed 16-bit units.
You cannot simply copy a string into a binary buffer because the bitwise representation differs entirely. For example, a simple character like “A” in UTF-8 is `0x41`, but in UTF-16 it requires two bytes: `0x0041`. This tool handles that padding and the complex Surrogate Pair calculations required for emojis.
Manual vs. Automated Conversion
| Comparison | Manual Calculation | Our UTF-16 Converter |
|---|---|---|
| Calculation Logic | Complex Bit-shifting | Instant Automated Mapping |
| Emoji Support | Difficult (Requires Surrogate Math) | Automatic Surrogate Pairs |
| Endianness | Prone to human error | One-click Toggle (BE/LE) |
Frequently Asked Questions
Q. What is the difference between Big Endian and Little Endian?
This refers to the order in which bytes are stored. Big Endian (BE) stores the most significant byte first (e.g., `00 41`), while Little Endian (LE) stores the least significant byte first (e.g., `41 00`). Intel/Windows systems typically use LE.
Q. Do I need the BOM (Byte Order Mark)?
The BOM (`FE FF` or `FF FE`) tells the reading software which Endianness is used. If you are pasting this data into a raw memory stream that expects pure data, you may want to disable the BOM.