Overview
Clear Canvas ("we," "our," or "us") operates the website clearcanvas.app. This Privacy Policy explains how we collect, use, and protect information when you use our service. We are committed to protecting your privacy — our tool is designed so that your images never leave your device.
Information We Do Not Collect
Clear Canvas processes images entirely within your web browser using client-side AI technology. Because of this architecture:
- •No image data is uploaded — your images are processed locally on your device and are never sent to any server.
- •No personal information is collected — we do not require accounts, logins, email addresses, or any form of registration.
- •No image data is stored — when you close the browser tab, all image data is permanently discarded from memory.
Information We May Collect
While we do not collect personal information directly, the following data may be collected through third-party services:
Hosting & Server Logs
Our website is hosted on standard web infrastructure that may automatically collect basic server logs, such as IP addresses, browser type, referring pages, and access timestamps. This data is used solely for maintaining the service and is not linked to any personal identity.
Google Analytics
We use Google Analytics to understand how visitors interact with our website. Google Analytics collects information such as pages visited, time spent on pages, referring websites, browser type, operating system, device type, and approximate geographic location (derived from IP address). Google Analytics uses cookies and similar technologies to collect this data. The information collected is aggregated and anonymized, and we do not use it to personally identify individual users. You may opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on. For more information, please review Google's Privacy Policy.
Cookies
Clear Canvas自体はトラッキング目的のクッキーを設定しません。ただし、Google Analyticsがウェブサイトの利用データを収集するためにクッキーをお使いのデバイスに設置する場合があります。ブラウザの設定からクッキーの設定を管理できます。多くのブラウザでクッキーのブロックまたは削除が可能です。クッキーをブロックすると、サイト上の一部サードパーティサービスの機能に影響が出る場合があることにご注意ください。
Third-Party Services
We use the following third-party services that have their own privacy policies:
- •Google Analytics — for website usage analytics (Privacy Policy)
Data Retention
Clear Canvasはすべての画像をブラウザ内でローカル処理するため、当社が画像データを保持することは一切ありません。ホスティングプロバイダーが収集するサーバーログは、最大90日間保持され、セキュリティおよび運用目的のみに使用されます。Google Analyticsが収集するデータは、Googleのデータ保持ポリシーに従って保持されます。
International Data Transfers
Google Analyticsは、お客様の居住国外のサーバー（米国を含む）にデータを転送する場合があります。Googleは、標準契約条項およびその他の適用データ保護機関が認める仕組みを含む、国際データ転送のための適切な保護措置を実施しています。本ウェブサイトを利用することにより、お客様の居住国とは異なるデータ保護水準の国でデータが処理される場合があることを承認したものとみなします。
Your Rights
Depending on your location, you may have certain rights regarding your personal data under applicable privacy laws, including the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA).
For Users in the European Economic Area (EEA) / United Kingdom
Under the GDPR, you have the following rights with respect to any personal data we process:
- •Right of Access — you may request a copy of the personal data we hold about you.
- •Right to Rectification — you may request that we correct any inaccurate personal data.
- •Right to Erasure — you may request that we delete your personal data, subject to legal obligations.
- •Right to Data Portability — you may request a machine-readable copy of your personal data.
- •Right to Object — you may object to the processing of your personal data for certain purposes.
- •Right to Restrict Processing — you may request that we limit the processing of your personal data.
Google Analyticsを通じたデータ処理の法的根拠は、お客様の同意（ウェブサイトの継続的な使用によって提供されます）およびウェブサイトの利用状況を把握するための当社の正当な利益です。また、地元のデータ保護機関に苦情を申し立てる権利もあります。
For Users in California (CCPA)
Under the California Consumer Privacy Act, California residents have the following rights:
- •Right to Know — you may request information about the categories and specific pieces of personal data we have collected.
- •Right to Delete — you may request deletion of your personal data, subject to certain exceptions.
- •Right to Opt-Out — 個人データの「販売」をオプトアウトすることができます。当社は個人データを販売しません。サードパーティへのデータ共有は、ウェブサイト利用統計のためのGoogle Analyticsを通じたものに限られており、Google Analyticsのオプトアウトブラウザアドオンを使用してオプトアウトすることができます。
- •Right to Non-Discrimination — we will not discriminate against you for exercising any of your CCPA rights.
To exercise any of these rights, please contact us at [email protected]. We will respond to your request within the timeframe required by applicable law.
Children's Privacy
Our service is not directed to individuals under the age of 13 (or 16 in the EEA). We do not knowingly collect personal information from children. Since Clear Canvas does not require any form of registration or data input beyond image files (which are processed locally), no personal data from any user — including children — is collected or stored. If you believe that a child has provided us with personal data, please contact us at [email protected], and we will take steps to address the situation.
Data Security
Because Clear Canvas processes all images locally in your browser, your image data is inherently secure — it never traverses the internet and is never stored on any server. The website is served over HTTPS to ensure the integrity and security of the application code delivered to your browser.
Changes to This Policy
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date. If we make material changes, we will make reasonable efforts to provide notice (such as updating the "Last updated" date prominently). We encourage you to review this page periodically for the latest information on our privacy practices.
Contact
If you have any questions about this Privacy Policy or wish to exercise your data protection rights, please contact us at [email protected].