I can't log into my Clip Studio account


I am unable to log in to Clip Studio. Can you tell me why I can't log in?


There are several reasons why you may not be able to log into Clip Studio.

Please check the information below.

You are logging in with an unregistered email address

One of the most common cases user support receives are those in which an email address is not registered to an account.

Ordering a monthly usage plan for Clip Studio Paint for iPad will not create a Clip Studio account.

Please register for a new Clip Studio account here.

Also see the cases in which a Clip Studio count has or has not been created.

If you receive a "Cannot log in" message

If a "Cannot log in" error message displays when logging into Clip Studio, please update to the latest version from here.

If the problem persists, there may be a problem with Clip Studio's network connection.

Please check the information below.

Windows: I do not see any error but cannot log in

If you encounter the following situation when logging into Clip Studio, a Microsoft Defender setting may be the cause.

  • When logging in, I get no error and cannot login
  • When I try to download materials after logging in, I get the message "Please log in"

Please refer to the following page to turn off Controlled folder access in Microsoft Defender settings.

If you are unable to switch devices on your monthly usage plan

If, after starting or logging in to Clip Studio Paint, you receive the error message "This license has reached the maximum number of deactivations, so it cannot be activated on this device." and you are unable to activate the software, please see the following page.

If you had previously been able to log in

If you have suddenly become unable to log in with your existing email address or password, please contact our user support center.


Celsys User Support

・ E-mail: tech@celsys.co.jp

・ Please add “EN-FAQ-20190166” to the email subject.

Including the following information in your email will allow us to provide you with a more seamless support experience.

・ Date and time of last login

・ Date and time of first rejected login

・ Registered email address

・ Full error message when attempting to log in.

・ Whether you can or cannot can’t log in from both Clip Studio applications and website.

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● I forgot my Clip Studio account password