Before posting, take a breath.

Yes. It is free to use. No app installation, account registration, or login is required.

This service is for checking text that you intend to publish on social media or the internet. Please do not enter text you would not post publicly, such as confidential company or organization information, personal information, or other sensitive information.

No. Input text is not stored in the tool and is not used for AI training.

The AI (LLM) analyzes the entered text and displays reference information such as potentially concerning points, possible aggressiveness, defamatory tone, emotional intensity, and suggestions for improvement. The result is only reference information, and the final decision about whether to post remains yours.

No. The tool does not prevent posting. The final decision about whether to post, based on the check result or your own judgment, remains yours.

It can be especially useful for complaints or criticism written while emotions are high, posts that include opinions or comments about others, and posts that may reach a wide audience. Please use it as a second opinion when you wonder, "Could this sound too strong?"

Yes. If access is concentrated or stable operation becomes difficult, use of the tool may be temporarily restricted. Please wait a while and try again.

This tool is not operated by a company. It is developed and operated by one developer, Naohisa Aoki, as a sole proprietorship under the trade name Kokoro Mimamori. It was created from the hope of reducing harm on social media and the internet, and of helping protect people's hearts. For more detail, please see the article written by the developer.