* Currently, English is used if we do not have translations

ONE-MINUTE Sign up and Login (with or without SNS accounts)

Your name will be listed in the contributor list of projects. We will issue volunteer certificates for the tasks you performed while logging-in. We accept both your real and handle names.

Sign up and Log in with your SNS accounts (Recommended)

You can log in to Crowd4U with your SNS accounts.
Note that we never know your SNS password nor other privacy information.
We will obtain from SNS services the result of the log in confirmation only.
See more information Policy on handing personal information.

Sign up without SNS accounts and Login with your access token

* Click on the banner below and We will send you an access token after registration. You have to perform at least one microtask to prove you are not a BOT before you sign up.
Sign in without SNS accounts

Policy on handing personal information

Information provided by contributors is used only for (1) the matching of tasks and contributors and (2) research purposes.
Only "Name", "Location (Country, Prefecture/State)" and "Affiliation" will be published.
No other information is published, but it may be used to compute statistics that identify no contributors.
We never obtain your password.