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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
crashes and cant export to moc3 in Help
moeanimelmoeanimel
3
650
KugellKugell
Problem When Using Multiple Monitor in Help
D_HD_H
5
657
D_HD_H
Static facial expressions in Help
OllieMendesOllieMendes
0
53
OllieMendesOllieMendes
Live2D parameters go broken for no reason? in Help
Answered
MiukahMiukah
1
846
kudo(Staff)kudo(Staff)
Art not visible after creating mesh in Help
otter_computerotter_computer
1
3K
otter_computerotter_computer
Multiple Deform Paths For One Object in Feature requests
HowTheTurnsTableHowTheTurnsTable
4
985
HowTheTurnsTableHowTheTurnsTable
Does anyone know the name of these buttons? in Help
KatuzzKatuzz
1
429
Ran_THRan_TH
Live2D Editor Freeze in Animation Mode frequently in Help
houpohoupo
3
382
kudo(Staff)kudo(Staff)
Reset deformer to original state in Feature requests
Ran_THRan_TH
4
6.2K
Ran_THRan_TH
animation tab will not export more than 16 seconds in Help
helpmehelpme
2
176
kudo(Staff)kudo(Staff)
Live2D Running Very Slow in Help
pinkishdawnyapinkishdawnya
2
844
kudo(Staff)kudo(Staff)
Não consigo mais acessar Texture Atlas e partes do modelo já pronto sumiram in Help
KitsuneArtsKitsuneArts
1
42
kudo(Staff)kudo(Staff)
I can't open my cmo3 file. in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
nananeuenananeue
1
337
kudo(Staff)kudo(Staff)
I accidentally deleted the heavy art mesh in automatic art mesh generator. in Help
IAmReallyTiredIAmReallyTired
2
3.7K
IAmReallyTiredIAmReallyTired
I accidentally deleted the heavy art mesh in automatic art mesh generator. in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
IAmReallyTiredIAmReallyTired
0
55
IAmReallyTiredIAmReallyTired
I accidentally deleted the heavy art mesh in automatic art mesh generator in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
IAmReallyTiredIAmReallyTired
0
104
IAmReallyTiredIAmReallyTired
Copy Shape in Help
SakuBonesSakuBones
1
384
MapoTofu2700MapoTofu2700
Program Crashes whenever I try to "open" or "save as" in Help
XexusXexus
5
684
RavenXRavenX
Why Drawable Vertices always change? in Help
nevermoreberrynevermoreberry
1
54
kudo(Staff)kudo(Staff)
If I purchase the license will I be able to save my work. in Help
Answered ✓
TheKamizTheKamiz
1
254
kudo(Staff)kudo(Staff)
Live2D Cubism Editor crashing on startup in Help
SlippySlippy
3
733
SlippySlippy
[SUGGESTION] Show a warning when PSD has unsupported features in Help
Ran_THRan_TH
1
93
kudo(Staff)kudo(Staff)
seperating eye blink parameter? in Help
NotOffendingAnyoneNotOffendingAnyone
0
103
NotOffendingAnyoneNotOffendingAnyone
Disable Parameter Randomness in Feature requests
pettankonpettankon
1
919
ueno(staff)ueno(staff)
exporting problems in Help
X56HCX56HC
1
638
kudo(Staff)kudo(Staff)
Live2D Cubism isn't opening in Help
KaxtlynKaxtlyn
1
297
kudo(Staff)kudo(Staff)
Texture Atlas window won’t open. in Help
Answered
onlychuonlychu
1
288
kudo(Staff)kudo(Staff)
Problem exporting movie/mp4 in Help
hiKPhiKP
5
1.1K
kudo(Staff)kudo(Staff)
when exporting files I only recive 5 out of 7 files i need for running in vtube in Help
adhdariesadhdaries
1
121
kudo(Staff)kudo(Staff)
[BUG] Editor freeze when Export Model by shortcut in Help
Ran_THRan_TH
1
194
ueno(staff)ueno(staff)