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Live2D Cubism
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[About Cubism Editor / SDK 5.4 Alpha](Updated: July 14, 2026)

You can download the alpha installer from the dedicated forum below.
If you have any feedback regarding the alpha version, including feature requests or bug reports, please use the same forum.

Cubism Editor / SDK 5.4 Alpha Forum
https://creatorsforum.live2d.com/c/cubismeditorsdk54alpha/

[Regarding macOS Tahoe](Updated October 16, 2025)

macOS v26 Tahoe is now supported!
We advise against upgrading your macOS at this time as it may cause Live2D products not to function correctly.
Upgrading macOS can also cause you to lose your Cubism Editor license file.
Please make sure to deactivate your Cubism Editor license before upgrading the macOS.

For more details:
https://help.live2d.com/en/other/other_09/
For inquiries regarding issues with license purchases or license activation errors, please contact us through the email form.

License activation failed (1 ,-191)

I uninstalled and re-downloaded the latest version but it still doesn't work.

Comments

  • @Pink03

    Thank you for your continued patronage of our products.
    We are Live2D staff.

    Please use the Contact Form to report any questions you may have regarding the license activation.

    1. Access the " Contact Form" at the following link
    https://www.live2d.jp/eng/contact/?redirect=1

    2. Select "PRO license" in the "Inquiries about Cubism Editor" section

    3. Follow the messages on the site and describe the contents of your inquiry.

    Best regards.
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