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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
my live 2d image becomes a lot when i want to edit it in Help
Answered ✓
NailaNaila
2
221
NailaNaila
I cannot export my model to cmo3 in Help
PuchiPuchi
2
266
kudo(Staff)kudo(Staff)
HELP!!!!!!! in Help
kiara293kiara293
1
69
kudo(Staff)kudo(Staff)
Crashing in Help
AngieTheCatAngieTheCat
11
2.7K
kudo(Staff)kudo(Staff)
Error Exporting .moc3 file in Help
spatsulaspatsula
3
197
PuchiPuchi
Live2D Change Dress Method in Help
LingLuanLingLuan
0
65
LingLuanLingLuan
Issue with Keyframes in Help
Answered
StarslastforeverStarslastforever
2
532
StarslastforeverStarslastforever
How do I switch lots of clothes,Different shapes and pictures in Tips and Tricks
LingLuanLingLuan
0
114
LingLuanLingLuan
Angle X switched in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
JMFJMF
1
242
kudo(Staff)kudo(Staff)
Cant see Layers in Help
AveryAvery
1
1.5K
kudo(Staff)kudo(Staff)
Fix the deformer for deformer validation? in Tips and Tricks
KPYoumuKPYoumu
1
168
kudo(Staff)kudo(Staff)
Step Parameter in Feature requests
Ran_THRan_TH
2
424
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 ✓
LumikoLumiko
5
1.1K
LumikoLumiko
Live 2d PRO free trial not saving. in Help
Answered
CandleCandle
4
554
CandleCandle
"Stacking" dual clipping in Help
RelatedGuyRelatedGuy
3
3.8K
MakingThingsMakingThings
How do I authenticate with Cubism Editor for the AE plug-in? in Help
Answered ✓
SapphireSapphire
1
438
kudo(Staff)kudo(Staff)
Program won’t open at all in Help
hexhex
4
137
kudo(Staff)kudo(Staff)
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
220
kudo(Staff)kudo(Staff)
[BUG?] Set input image to artmesh gives different output? in Help
Ran_THRan_TH
2
333
Ran_THRan_TH
Invalid license key (5 ,-1005) in Help
Answered ✓
kowaiteakowaitea
2
946
kowaiteakowaitea
More Assignable Keyboard Shortcuts in Feature requests
Ran_THRan_TH
4
719
ieatmodelsieatmodels
about rotation deformer in Help
AriaAriAriaAri
1
82
kudo(Staff)kudo(Staff)
upgrade from Free to Trial?? in Help
StormyBucketsStormyBuckets
1
448
kudo(Staff)kudo(Staff)
Not Opening: Cubism Viewer (for OW) 4.1.04 in Help
AsaAsa
1
199
kudo(Staff)kudo(Staff)
"Format not supported" Help? in Help
GilligcatGilligcat
3
1.9K
kudo(Staff)kudo(Staff)
Mesh generator in Help
Abbyss_00Abbyss_00
7
587
Abbyss_00Abbyss_00
Having problem making Cubism DIY Viewer in Help
a31761701a31761701
1
89
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
470
kudo(Staff)kudo(Staff)
Physics Window Not Showing in Help
HexamisHexamis
2
498
HexamisHexamis
My PSD import keeps messing up in Live2D Cubism in Help
KingLunaJrKingLunaJr
1
184
kudo(Staff)kudo(Staff)