Yes, you can take the computer-based HSK 3 test.
Many universities and testing centers now offer computer-based versions of the HSK, including HSK 3. For example, Wenzhou University has held computer-based HSK 3 tests in the past, indicating that this format is available.
To register for the computer-based HSK 3 test, you can visit the official HSK website (www.chinesetest.cn) and follow the online registration process. During registration, you will need to select the computer-based test option and choose a suitable test center and date.
The computer-based HSK 3 test follows the same format and content as the paper-based version, covering listening, reading, and writing sections. Taking the test on a computer may offer advantages such as clearer audio for the listening section and easier input for the writing section.