Privacy Policy
Yu Li built the Tabverse app as an Open Source app. This SERVICE is provided by Yu Li at no cost and is intended for use as is.
This page is used to inform visitors regarding my policies with the collection, use, and disclosure of Personal Information if anyone decided to use my Service.
If you choose to use my Service, then you agree to the collection and use of information in relation to this policy. The Personal Information that I collect is used for providing and improving the Service. I will not use or share your information with anyone except as described in this Privacy Policy.
The terms used in this Privacy Policy have the same meanings as in our User Agreement unless otherwise defined in this Privacy Policy.
Information Collection and Use
Tabverse stores your data on your own device (in the browser's local database). By default nothing is transmitted anywhere, and the app works fully without an account or a network connection.
On-device AI
Where Chrome ships its built-in AI model, Tabverse can suggest a name for a tab collection, summarize a page into a note, and hold a chat about a page you attach. These run entirely on this device: the text is handed to the model inside the browser and is never sent anywhere - not to us, not to a third party. The model itself is downloaded once by Chrome when you first use a feature; Tabverse makes no network request of its own for it, and without Chrome's built-in model the AI features simply do not appear.
Reading a page is always something you ask for. When you use the page-actions lightbulb on a live tab - to view the page as Markdown, to summarize it into a note, or to attach it to the AI chat - Tabverse reads that tab's rendered content on demand and turns it into the note, the dialog or the chat context. Nothing is read in the background, nothing is read from a page you did not click, and the page's content is never synced. A summary you keep is an ordinary note, and syncs like any other note if you have sync on.
Optional server sync
You can choose to pair your browser with your own sync server (an open source
Go program called tabversed). Only when you do this: setting up the
connection sends the data already stored on this device - the dialog tells you
how many tabverses, tabs, notes, todos and bookmarks that is before you
confirm, and you can untick a box to connect without sending anything, keeping
your existing data on the device. Either way, what reaches the server is sent
to the server you configured over an encrypted connection:
- tab URLs and titles, saved tab groups, notes, todos and bookmarks
- periodically captured session snapshots (window/tab listings)
Console accounts. You can sign in to the server's own web console to add devices and look at your data. Signing in means either a single-use link sent to your email address - there is no password to store anywhere - or GitHub or Google, and only if the server operator configured that. Signing in and creating the account are two steps: the account is created when you finish the Create your account page, which stores your email address (what the link was sent to, or what the sign-in provider returned - with Google, the address you gave Google, and whether Google reports it as verified), records your agreement to the user agreement, and, on an invite-only server, takes the invitation code you were given. It is never sent anywhere else. Sessions are cookies on that server only, and an operator of a multi-user server can open a read only, time limited, logged view of your account to answer support questions; they cannot change anything that way. The console has no master password or token: the person who runs the server is an ordinary account, identified by an address the operator configured, and every action taken in the console is recorded against an account.
That data is used solely to synchronise your own devices. It is never sold, never shared with third parties, and never sent to any other host than the server URL you entered. Server side retention removes session snapshots after 14 days by default (configurable, 0 keeps them forever). You can disconnect at any time from the sync dialog; your local copy remains untouched.
The extension itself has no accounts, no analytics, no advertising and no tracking. An account exists only on a server you choose to pair with, and only if you create one there.
Log Data
I want to inform you that whenever you use my Service, in a case of an error in the app I collect data and information (through third-party products) on your phone called Log Data. This Log Data may include information such as your device Internet Protocol (“IP”) address, device name, operating system version, the configuration of the app when utilizing my Service, the time and date of your use of the Service, and other statistics.
Cookies
Cookies are files with a small amount of data that are commonly used as anonymous unique identifiers. These are sent to your browser from the websites that you visit and are stored on your device's internal memory.
This Service does not use these “cookies” explicitly. However, the app may use third-party code and libraries that use “cookies” to collect information and improve their services. You have the option to either accept or refuse these cookies and know when a cookie is being sent to your device. If you choose to refuse our cookies, you may not be able to use some portions of this Service.
Service Providers
I may employ third-party companies and individuals due to the following reasons:
- To facilitate our Service;
- To provide the Service on our behalf;
- To perform Service-related services; or
- To assist us in analyzing how our Service is used.
I want to inform users of this Service that these third parties have access to their Personal Information. The reason is to perform the tasks assigned to them on our behalf. However, they are obligated not to disclose or use the information for any other purpose.
Security
I value your trust in providing us your Personal Information, thus we are striving to use commercially acceptable means of protecting it. But remember that no method of transmission over the internet, or method of electronic storage is 100% secure and reliable, and I cannot guarantee its absolute security.
Links to Other Sites
This Service may contain links to other sites. If you click on a third-party link, you will be directed to that site. Note that these external sites are not operated by me. Therefore, I strongly advise you to review the Privacy Policy of these websites. I have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.
Children’s Privacy
I do not knowingly collect personally identifiable information from children. I encourage all children to never submit any personally identifiable information through the Application and/or Services. I encourage parents and legal guardians to monitor their children's Internet usage and to help enforce this Policy by instructing their children never to provide personally identifiable information through the Application and/or Services without their permission. If you have reason to believe that a child has provided personally identifiable information to us through the Application and/or Services, please contact us. You must also be at least 16 years of age to consent to the processing of your personally identifiable information in your country (in some countries we may allow your parent or guardian to do so on your behalf).
Changes to This Privacy Policy
I may update our Privacy Policy from time to time. Thus, you are advised to review this page periodically for any changes. I will notify you of any changes by posting the new Privacy Policy on this page.
This policy is effective as of 2021-12-06; the server sync section was added in 2026, and the console accounts paragraph was updated when social sign-in was added and again when registration became its own step.
Contact Us
If you have any questions or suggestions about my Privacy Policy, do not hesitate to contact me at liyu1981@gmail.com.