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.

The CLIP STUDIO account will not be created in the following cases.

・Bought the one-time purchase (download version) of Clip Studio Paint

Click here to complete the registration process.

* If you are not sure if you have registered an account, please see the FAQ below.

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 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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