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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.

Recent Discussions

Discussion List

Discussion
Started By
Replies
Views
Most Recent
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LingLuanLingLuan
Issue with Keyframes in Help
Answered
StarslastforeverStarslastforever
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StarslastforeverStarslastforever
How do I switch lots of clothes,Different shapes and pictures in Tips and Tricks
LingLuanLingLuan
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Angle X switched in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
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kudo(Staff)kudo(Staff)
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AveryAvery
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Fix the deformer for deformer validation? in Tips and Tricks
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155
kudo(Staff)kudo(Staff)
Step Parameter in Feature requests
Ran_THRan_TH
2
406
Ran_THRan_TH
When I try to save my model, it says "java.lang.outOfMemoryError Java heap space". How do I fix it? in Help
Answered ✓
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LumikoLumiko
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528
CandleCandle
"Stacking" dual clipping in Help
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3
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Answered ✓
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1
424
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Program won’t open at all in Help
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4
132
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why is it low resolution and blurry when i open physics/scene blending settings? in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
reichi404reichi404
1
207
kudo(Staff)kudo(Staff)
[BUG?] Set input image to artmesh gives different output? in Help
Ran_THRan_TH
2
317
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Invalid license key (5 ,-1005) in Help
Answered ✓
kowaiteakowaitea
2
928
kowaiteakowaitea
More Assignable Keyboard Shortcuts in Feature requests
Ran_THRan_TH
4
703
ieatmodelsieatmodels
about rotation deformer in Help
AriaAriAriaAri
1
72
kudo(Staff)kudo(Staff)
upgrade from Free to Trial?? in Help
StormyBucketsStormyBuckets
1
435
kudo(Staff)kudo(Staff)
Not Opening: Cubism Viewer (for OW) 4.1.04 in Help
AsaAsa
1
192
kudo(Staff)kudo(Staff)
"Format not supported" Help? in Help
GilligcatGilligcat
3
1.9K
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Mesh generator in Help
Abbyss_00Abbyss_00
7
559
Abbyss_00Abbyss_00
Having problem making Cubism DIY Viewer in Help
a31761701a31761701
1
83
yasu.o@live2dyasu.o@live2d
Please help me the language in my live2d is bugged in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
RifanxDRifanxD
3
458
kudo(Staff)kudo(Staff)
Physics Window Not Showing in Help
HexamisHexamis
2
486
HexamisHexamis
My PSD import keeps messing up in Live2D Cubism in Help
KingLunaJrKingLunaJr
1
166
kudo(Staff)kudo(Staff)
I can't Export Animation no matter WHAT i try. in Help
SpazzyHippieSpazzyHippie
2
888
kudo(Staff)kudo(Staff)
How to go to PRODUCTION mode ? in Help
jakubkuranavijakubkuranavi
1
84
jakubkuranavijakubkuranavi
[FIXED] No folders being created when starting a new project in Help
fayepillowfayepillow
2
488
fayepillowfayepillow
Model fine in moc3 but cmo3 busted in Help
ExpectnothinExpectnothin
1
666
kudo(Staff)kudo(Staff)