This is a list of translations created by Aseprite users and distributed as extensions (pull requests are welcome):

• French (French alternative)
• Japanese
• Korean (Korean alternative)
• Portuguese
• Russian
• Simplified Chinese
• Traditional Chinese

Since Aseprite v1.2.7.3 you can:

1. Go to Edit > Preferences > Extensions > Add Extension
2. Select the downloaded .zip of the language extension
3. Then go to Edit > Preferences > General > Language and select the new language in the combobox
4. Press the OK button.