Learn how and what kind of calculations you can do in Vivaldi on iOS.

Learn how and what kind of calculations you can do in Vivaldi on Android.

Enhance your browsing experience in Vivaldi on Android with Extensions.

Find answers to frequently asked questions about the Vivaldi browser for Enterprise.

Adjust the little things to make listening to Vivaldi Radio even better.

Learn about the options you have for opening and saving PDF files in the Vivaldi browser on Android.

Customize Vivaldi on Android with a custom App Icon that fits your phone’s or tablet’s style.

Create a desktop-style browsing experience by connecting your Android phone to an external display. Learn how from this Vivaldi Help article.

Learn about the settings in the Themes Editor to create a custom look for your Vivaldi browser.

The User-Agent and Client-Hints User-Agent Brands List are two methods websites can use to identify the visiting user’s web browser. This is sometimes used to adapt a website to the visitor’s web browser, but is sometimes abused to block access to websites unless visited using an approved web browser.

Vivaldi does not use a browser-identifiable User-Agent or Client-Hints (on applicable platforms) by default. However, Vivaldi uses a browser-identifiable User-Agent when users visits about half-a-dozen Partner Sites¹.

Users can opt-in to adding the Vivaldi brand to their Client-Hints brand list on the desktop platform (Linux, Windows, macOS). This option is available in Settings > Network > User-Agent Brand Masking.

Vivaldi’s User-Agent and Client-Hints User-Agent availability vary by platform:

Platform	User-Agent	Client-Hint
Desktop	Vivaldi	Vivaldi
Android	Vivaldi	Vivaldi
iOS2	VivaiOS/VivaldiVersion	Non-Applicable

Vivaldi encourages web developers to rely on Feature Detection rather than adopting user experience based on User-Agents. This design approach is more backwards and forwards compatible than making decisions based on User-Agents.

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Examples

Desktop User-Agent (Partner Sites only):

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36 Vivaldi/7.9.3970.64

Android User-Agent (Partner Sites only):

Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Mobile Safari/537.36 Vivaldi/7.9.3970.64

iOS User-Agent (Partner Sites only):

Mozilla/5.0 (iPhone; CPU iPhone OS 26_4_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/146.0.0.0 Mobile/15E148 Safari/604.1 VivaiOS/VivaldiVersion/7.9

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Footnotes

1. You can find the list of Partner Sites in the Vivaldi source code (components/user_agent/vivaldi_user_agent_allow_list.inc). ↩︎
2. Vivaldi for iOS differ as it’s built on top of Apple WebKit, whereas the other platforms is built on top of Chromium. ↩︎