Privacy policy
Established: Aug 23, 2026 / Last updated: Sep 1, 2026
oka-project ("this site") sets out the following privacy policy for how it handles user information on oka-project.com and the websites and services provided under this domain.
This English version is provided for convenience. If there is any discrepancy, the Japanese version prevails.
1. Information we collect
This site may collect or process the following information to the extent necessary to provide and operate its services.
Information collected when you contact us
When you use the contact form or email, we collect:
- Your name or handle
- Your email address
- The content of your inquiry
- Any other information you voluntarily submit
Information processed when you use the site
When you access this site, the analytics, delivery, and security services we use may process information such as:
- IP address
- Date and time of access
- Pages viewed
- Referrer
- Information about your browser, OS, and device
- Cookies and other identifiers
- Approximate region
2. Purposes of use
Collected information is used for:
- Confirming and replying to inquiries
- Providing, maintaining, and improving services and web tools
- Investigating bugs and failures
- Understanding and analyzing site usage
- Responding to spam, unauthorized access, and other abuse
- Maintaining the safety of the site and its services
- Responding to lawful requests based on laws or from public authorities
If we need to use collected personal information beyond these purposes, we will obtain your consent where required, except where permitted by law.
3. Data you enter into web tools
For web tools on this site that are explicitly described as processing data in the browser, the text you enter and the files you load are processed inside your browser.
In that case, the input and file contents processed by the tool are not sent to or stored on oka-project servers.
This does not include the ordinary network information generated when you access the tool page, or information processed by analytics and security services.
If we ever provide a tool that requires sending or storing data on a server, we will state how that data is handled on the tool itself.
4. Cookies and local storage
This site may use cookies and browser local storage for analytics, site functionality, and saving settings.
You can delete or disable cookies in your browser settings, though some features may stop working correctly.
Data in local storage is stored inside your browser and can be removed by clearing the browser's site data.
5. Google Analytics
This site uses Google Analytics to understand usage and improve the site and its services.
Google Analytics may use cookies to collect information such as page views, environment, and approximate region.
Collected information is processed under Google's terms and privacy policy.
We do not use information obtained through Google Analytics to identify specific individuals.
If you prefer not to be measured, you can use your browser's cookie settings or Google's opt-out tools.
6. Cloudflare
This site uses Cloudflare for delivery, security, protection against unauthorized access, and performance.
In the course of providing these services, Cloudflare may process IP addresses, network information, and information about your browser and device.
This information is handled under Cloudflare's privacy policy.
7. Cloudflare Turnstile
We use Cloudflare Turnstile to protect the contact form against spam and automated submissions.
Turnstile may process information about your browser, device, and network environment via Cloudflare.
This information is used to detect automated abuse and keep the service safe.
8. External services
This site may use external services — analytics, hosting, security, email, and others — to the extent necessary for operation.
Information required for these services may be processed by their providers, under each provider's terms and privacy policy.
9. Disclosure to third parties
We do not provide personal information to third parties without your consent, except where permitted by law.
We may provide information to the necessary extent in the following cases:
- With your consent
- When required by law
- When necessary to protect a person's life, body, or property
- When necessary to respond to unauthorized access, attacks, or other abuse
- In other cases permitted by law
10. Information management
We take reasonable safeguards against unauthorized access, leakage, loss, and tampering, appropriate to the scale of operation and the information handled.
We also try not to collect personal information beyond what is needed to provide the services.
11. Retention and deletion
Information obtained through inquiries may be kept to the extent needed for responding, keeping records of correspondence, handling abuse, and other operational purposes.
Information that is no longer needed for its purpose is deleted or organized appropriately, except where retention is required by law.
Information processed by external services is subject to the retention periods set by each provider.
12. Disclosure, correction, and deletion requests
If you wish to request disclosure, correction, suspension of use, or deletion of your personal information held by this site, contact us via the contact page.
Where identity verification is needed, we verify to the minimum necessary extent and respond in accordance with law.
We may not be able to respond regarding information we do not hold, or information managed independently by external service providers.
13. Links to external sites
This site may contain links to external websites and services.
Please check each site's privacy policy for how they collect and use information.
14. Compliance
This site complies with applicable laws and other norms concerning the handling of personal information, and reviews its practices as needed.
15. Changes to this policy
We may change this policy as services, external services, or laws change.
For important changes, we will announce them on this site as needed.
The revised policy applies from the time it is posted on this page.
16. Contact
For inquiries about the handling of personal information or this policy:
Project: oka-project
Operator: oka
Contact: contact@oka-project.com