Privacy
Build Extension (https://build-extension.com) builds Chrome extensions from a prompt and, if you ask it to, publishes them to your own Chrome Web Store account. This page says exactly what it stores and what it does with it.
What Build Extension stores
- Your account email. Either the address you registered with, or the one Google returns when you sign in with Google. Passwords are stored only as a scrypt hash; signing in with Google stores no password at all.
- Your projects. The prompts you type, the extension Build Extension generates from them, any extension zip you upload yourself, the build logs, the test screenshots and videos, and the store listing text and its translations. They live in a folder on the Build Extension server that belongs to your account.
- Your Chrome Web Store Publisher ID and item IDs — only if you enter them. These are public identifiers, not secrets: your Publisher ID is shown in your own developer console, and an item ID names an extension in the store. Build Extension keeps no Google login, no cookies and no session for you.
How Build Extension publishes
When you press Publish, Google shows you its own consent screen. The access token Google returns is held only in memory for that single publish — Build Extension uploads the package and publishes the item by ID with it, then discards it. No refresh token, and nothing reusable, is ever stored. Every publish asks for consent again. The listing itself — description, screenshots, category, privacy and distribution — you complete in your own dashboard; Build Extension generates the text for you to paste.
What Build Extension never does
- It does not read your browsing history, your tabs, or any page you visit.
- It never stores your Google login, cookies or a reusable token, and it uses the momentary publish token only for the Chrome Web Store — no Gmail, Drive, Photos or any other Google service.
- It does not sell or share your data, and it does not use your extension's code to train models.
How long it is kept
Your account, your projects and the files generated for them are kept until you delete them. Your Publisher ID and item IDs are removed the moment you press Disconnect or delete a project, and when you delete your account.
Deleting your data
Press Disconnect on the connection page to forget your Publisher ID. Deleting your account removes the account, its sign-in sessions and its stored store identifiers. The generated project files are kept on disk unless you ask us to remove them — write to support@ext.svyat.site and we will.
Third parties
Build Extension talks to Google (sign-in, and the Chrome Web Store when you publish) and to Anthropic's Claude models, which write your extension's code and its store listing text. Your prompts and your extension's manifest are sent to Claude for that purpose. Nothing else leaves this server.
Contact
Build Extension · Privacy · Terms · Support · support@ext.svyat.site