Privacy Policy

Your files stay in your browser

Tools on this site, including File Renamer, process the files you select entirely within your browser. Your files, file names, and their contents are not uploaded to or stored on our servers. Downloads (such as the generated zip) are created locally on your device.

Cookies

The site sets a cookie ("yoshinya_locale") to remember the language you chose; it contains only "ja" or "en". In addition, Google Tag Manager and the measurement tags it loads (see Analytics) may set their own cookies.

Server logs

The site is delivered through Cloudflare. Like most web infrastructure, Cloudflare may process basic technical request data (such as IP address and browser information) to serve and protect the site. We do not use this data to identify you.

Analytics

On the production site (yoshinya.com) we use Google Tag Manager to load measurement tags such as website analytics. These tags may set cookies and collect standard usage data — for example the pages you visit, referring page, browser and device type, and an approximate location derived from your IP address. This data is processed by Google; please refer to Google’s privacy policy for details.

Analytics never receives the names or contents of the files you process. All file processing stays in your browser and is never sent to us or to Google.

Contact

For questions about this policy, contact us via X (Twitter): @yoshinya_com.

Changes to this policy

We may update this policy as the service evolves. The date above shows the latest revision. Continued use of the site after an update constitutes acceptance of the revised policy.