Privacy Policy

Last updated: September 25, 2026

3dSceneBuilder is an architectural design app that runs in your web browser. This policy covers the website at 3dscenebuilder.com and the 3dSceneBuilder Connector browser extension.

In short

• Your projects stay on your device unless you save them to your own Google Drive.
• 3dSceneBuilder has no servers that receive your projects, your messages to the AI assistant, your API keys or your ChatGPT sign-in. Your browser talks directly to the services you choose.
• No advertising, no analytics, no tracking, and no cookies set by us. We do not sell or share your data.

Your projects

Projects, settings, and the models and textures you add are stored in your browser's storage on your device. Projects you export as .3dsb files are saved where you choose. Clearing this site's data in your browser deletes what is stored there.

Google Drive (optional)

If you connect Google Drive, you sign in on Google's own page and Google gives the app access to your Drive in your browser. Your browser then talks to Google directly:

• The app can only use files it created or that you opened with it (Google's drive.file permission). Your project backups are kept there.
• It keeps its settings in a hidden app folder in your Drive that only 3dSceneBuilder can read (drive.appdata). If you use the AI assistant with your own API keys, those keys are kept there too, so your other devices can use them.
• It reads your name, email address and profile picture to show which account is connected.

If you publish a project as a viewer link, a copy of that project in your Drive can be opened by anyone who has the link, until you pause or delete that link. You can remove the app's access to your Drive at any time in your Google Account. The app's use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

AI assistant (optional)

The assistant answers through an AI provider you choose: OpenRouter, Google, Anthropic, OpenAI, MiniMax, Z.ai, Moonshot AI, or your ChatGPT plan through the Connector. When you send a message, your browser sends it directly to that provider together with what the request needs: the conversation, a description of the relevant part of your scene, and any images you attach. That provider's own terms and privacy policy apply to what it receives.

The API keys you enter are stored in your browser on this device and, if you connect Google Drive, in the hidden app folder described above.

If your browser offers its own AI agent, 3dSceneBuilder can make its drawing tools available to that agent. What the agent sends and receives is handled by your browser and the agent's provider.

3dSceneBuilder Connector (browser extension)

The Connector lets the assistant answer on your own ChatGPT plan instead of a paid API key.

• What it stores: after you sign in on OpenAI's page, the sign-in OpenAI gives it (access and refresh tokens), your ChatGPT account's identifier, email address and plan type. They are kept in the extension's own storage on this computer.
• Where it sends data: only to OpenAI. It uses auth.openai.com to sign in and to renew the sign-in, and chatgpt.com to send the assistant's requests and to list your plan's models. These are the requests the 3dSceneBuilder page asks it to carry, with the content described under "AI assistant".
• What 3dSceneBuilder sees: whether you are signed in, the account's email address and plan type, and OpenAI's replies. The page never receives your sign-in.
• What it reads: it runs only on 3dscenebuilder.com. To finish signing in, it reads the one address OpenAI's page returns to on your own computer (localhost:1455). It does not read other websites, your tabs or your browsing history.
• Nothing is sent to us or to anyone else, and nothing is used for advertising, sold, or used for any purpose other than carrying your requests.
• Signing out in 3dSceneBuilder, or removing the extension, deletes the stored sign-in.

OpenAI's sign-in page names Codex: the Connector uses the sign-in OpenAI provides for using a plan in other programs, and replies count toward your plan's Codex usage. The use of information by the Connector complies with the Chrome Web Store User Data Policy, including the Limited Use requirements.

Hosting

The website is served by Cloudflare. Like any web host, Cloudflare processes technical information such as your IP address to deliver the site and protect it from abuse, under Cloudflare's privacy policy. We do not use this information to identify or track you.

Children

3dSceneBuilder is not directed at children under 13, and we do not knowingly collect information from them.

Changes

If this policy changes, this page is updated and the date at the top changes with it.

Contact

Questions about privacy: [email protected]