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Privacy Policy

Last updated: October 15, 2026

No Data Collection (Games & Utilities)

Single-player games and utilities on this site run entirely in your browser. No files are uploaded to any server for these. Your data stays on your device. The exception is the multiplayer features noted below.

Multiplayer game sessions

A handful of games (currently Sudoku, Chess and Conquest) support an online multiplayer mode where one player shares a link to invite others. While a session is active, the server stores the session ID, a randomly-generated player ID for each participant, the display name you enter, and the game state (board position, moves, and any in-progress puzzle). No email address, IP-derived identity, or account is required. Session files are automatically deleted 24 hours after the last activity; Conquest games, which are often played over several evenings, are kept for 7 days after the last move.

Demos that upload files for processing

The following demos accept a file upload, process it on a back-end server, and return a result. The uploaded file and any generated outputs are stored temporarily and automatically deleted within 1 hour of processing completion:

Some demos let you choose which back-end machine processes the file (a Windows box or the web server itself); either way the same retention applies — and demos that respond immediately delete the uploaded file as soon as it has been processed, and keep the generated result for up to 1 hour so you can download it.

Uploaded files are not read by a human, indexed, OCR'd for analytics, or used for any purpose other than producing the result you see in the demo. Outputs wait on the server until you download them and are deleted on the schedule above, whether or not you download them.

Each browser can download up to 3 results per demo per day from its own documents; results from the demos' sample documents are unlimited. The count is kept in a cookie in your browser, not on the server.

FileShare

Files uploaded to FileShare are stored temporarily on the server so you can share a link to them. They are automatically deleted within 24 hours of link expiration.

Notarized Signing Sessions

The Notarized Signing Sessions demo stores the working PDF document, the names participants join with, and the demonstration signing certificates issued in those names on the server for the duration of the session. All of this — document revisions, certificates and private keys, and session data — is automatically deleted within 24 hours. As in the demo above, signing and verification send document bytes to the server for OpenSSL processing in temporary files that are deleted per request.

Meeting Planner

The Meeting Planner tool stores meeting data—including names, email addresses, and availability—on the server. This data is automatically deleted 24 hours after the last meeting date. If the organizer schedules a time, the email addresses provided by respondents are used to send them a calendar invitation (and, if the organizer opts in, to notify the organizer of new responses); addresses are never shown to other participants.

No Advertising or Tracking

There is no advertising, analytics tracking, or revenue generation of any kind associated with this site. No third-party scripts are loaded to monitor your behavior.

No Data Sharing

User data is never sold, rented, or shared with any third party for advertising, analytics, or any commercial purpose. The only exception is our email delivery provider, which processes the address you give us solely to deliver the messages described above.

Cookies & Local Storage

This site uses browser localStorage to remember your preferences, such as theme settings and game progress. This data is stored locally on your device and is never transmitted to any server. The PDF demos also set one functional cookie, jb_dq, holding that day's download count for each demo. It contains no personal information, isn't used for tracking, and expires after two days. The site does not use tracking cookies.

Contact

If you have any questions about this privacy policy, you can reach Jeff Brand via LinkedIn.