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StartWebSession[]

starts a web session and returns a web session object.

StartWebSession["browser"]

starts a web session using the specified browser.

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StartWebSession

StartWebSession[]

starts a web session and returns a web session object.

StartWebSession["browser"]

starts a web session using the specified browser.

Details and Options

Examples

open all close all

Basic Examples  (2)

Start a web session with a "Chrome" browser:

Wolfram Language code: session = StartWebSession["Chrome"]

Open a webpage, then capture it as an Image:

Wolfram Language code: WebExecute[session, {"OpenPage" -> "https://wolfram.com", "CapturePage"}]

End the session with DeleteObject:

Wolfram Language code: DeleteObject[session]

Start a web session:

Wolfram Language code: session = StartWebSession["Chrome"]

Sessions are persistent across calls to WebExecute:

Wolfram Language code: WebExecute[session, "OpenPage" -> "https://www.wolframalpha.com"]
Wolfram Language code: WebExecute[session, "PageTitle"]

End the session with DeleteObject:

Wolfram Language code: DeleteObject[session]

Scope  (2)

Multiple web sessions can be run simultaneously:

Wolfram Language code: Map[StartWebSession, {"Firefox", "Chrome"}]

End the web sessions:

Wolfram Language code: DeleteObject[%]

Multiple web sessions run in their own independent process:

Wolfram Language code: sessions = Table[StartWebSession["Firefox"], 2]
Wolfram Language code: Map[#["Process"]&, sessions]

End the web sessions:

Wolfram Language code: DeleteObject[sessions]

Options  (1)

Visible  (1)

Start a new session in "headless mode", where the browser is not visible:

Wolfram Language code: session = StartWebSession["Chrome", Visible -> False]

Open a webpage:

Wolfram Language code: WebExecute[session, "OpenPage" -> "https://www.wolfram.com"]

Retrieve the page's title:

Wolfram Language code: WebExecute[session, "PageTitle"]

Close the session and exit the invisible browser:

Wolfram Language code: DeleteObject[session]
Wolfram Research (2019), StartWebSession, Wolfram Language function, https://reference.wolfram.com/language/ref/StartWebSession.html.

Text

Wolfram Research (2019), StartWebSession, Wolfram Language function, https://reference.wolfram.com/language/ref/StartWebSession.html.

CMS

Wolfram Language. 2019. "StartWebSession." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/StartWebSession.html.

APA

Wolfram Language. (2019). StartWebSession. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/StartWebSession.html

BibTeX

@misc{reference.wolfram_2026_startwebsession, author="Wolfram Research", title="{StartWebSession}", year="2019", howpublished="\url{https://reference.wolfram.com/language/ref/StartWebSession.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_startwebsession, organization={Wolfram Research}, title={StartWebSession}, year={2019}, url={https://reference.wolfram.com/language/ref/StartWebSession.html}, note=[Accessed: 13-June-2026]}