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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 physics window has everything greyed out but my model is moving. in Help
Answered ✓
HecateHecate
5
582
obsidianobsidian
Disable clip mask when editing mesh in Feature requests
LithmarielLithmariel
1
46
ookubo(staff) ookubo(staff)
Reflect Rotation Deformer like other types in Feature requests
CrunchyCrunchy
1
165
ookubo(staff) ookubo(staff)
Memory leak Issue in Help
BelphiDreamsBelphiDreams
3
184
ookubo(staff) ookubo(staff)
questions about body XYZ rigs in Help
trashpandariptrashpandarip
1
144
HecateHecate
Live2D parts tooltip are showing on top of other programs in Help
Ran_THRan_TH
3
169
Enoko(Staff)Enoko(Staff)
(Bug) Warning appears twice when applying keys to more than 3 Parameters in Feature requests
TheArtGunTheArtGun
5
357
Enoko(Staff)Enoko(Staff)
I can't export to .moc3, what does this error msg means!?!? in Help
Answered ✓
Vanila_XofeeVanila_Xofee
4
418
Enoko(Staff)Enoko(Staff)
making a template in Help
Answered
ButterflyBluesButterflyBlues
1
74
jooreeta_is_a_cookiejooreeta_is_a_cookie
Clipping onto multiple objects without OR in Help
Answered
CobehokCobehok
1
83
jooreeta_is_a_cookiejooreeta_is_a_cookie
Unable to Save Physics Please Help (Pro version) :( in Help
AnutahriaAnutahria
1
175
ookubo(staff) ookubo(staff)
The Live2D file opens to ibisPaint X... why??? in Help
KitKat97KitKat97
1
105
ookubo(staff) ookubo(staff)
Model Not Exporting in Help
MuirrinMuirrin
1
143
ookubo(staff) ookubo(staff)
Filter placed but unused textures in the texture atlas in Feature requests
cilliacillia
3
123
ookubo(staff) ookubo(staff)
Cant seem to open Live2dCubism editor or viewer in Help
AbyssalChoasAbyssalChoas
1
62
ookubo(staff) ookubo(staff)
Texture Atlas won't open no matter what in Help
WhittyoozeWhittyooze
3
95
ookubo(staff) ookubo(staff)
Unable to Export as mocs3 file once skinning has been added in Help
yjliu213yjliu213
3
241
ookubo(staff) ookubo(staff)
can't activate with perpetual license in Material Separation Photoshop Plug-in
tatsutaroutatsutarou
1
155
ookubo(staff) ookubo(staff)
The latest version of ive2D does not run. in Help
Answered
Nadellin_9Nadellin_9
15
959
Tak.W(Staff)Tak.W(Staff)
Animation Problem in Help
KookendryKookendry
1
74
ookubo(staff) ookubo(staff)
Can't buy Live2D 3 Year Plan in Help
HarlequinBunnyHarlequinBunny
1
123
ookubo(staff) ookubo(staff)
Program needs a restart during animations in Help
AnnaBeoAnnaBeo
1
53
ookubo(staff) ookubo(staff)
Jerky movements on Cubism 5 Viewer in General Discussions
NoireNoire
7
468
ookubo(staff) ookubo(staff)
Cubism Editor 5.0 locks on opening, login error? in Help
AMG08AMG08
12
278
ookubo(staff) ookubo(staff)
do live2d recruit outside japan? in General Discussions
Answered
nekopaonekopao
2
85
AMG08AMG08
The AngleY don't work in Help
HeyJessHeyJess
0
146
HeyJessHeyJess
Center deformer feature/option in Feature requests
cilliacillia
1
507
ookubo(staff) ookubo(staff)
My Auto generate window not pop up in Help
BeginnerkaBeginnerka
1
52
ookubo(staff) ookubo(staff)
Model wont export in Help
HattyBeeHattyBee
1
85
ookubo(staff) ookubo(staff)
Can't deactivate expired license or activate new one. in Help
AzatoStaciaAzatoStacia
1
104
ookubo(staff) ookubo(staff)