# Window open() Method (ok) ## Window open() Method [❮ Window Object](https://www.w3schools.com/jsref/obj_window.asp) #### Example Open "[www.w3schools.com](http://www.w3schools.com)" in a new browser tab:window\.open("[https://www.w3schools.com");\[Try](https://javascriptuse.gitbook.io/advanced/javascript/https:/www.w3schools.com"\);\[Try) it Yourself »]\() More "Try it Yourself" examples below. ### Definition and Usage The open() method opens a new browser window, or a new tab, depending on your browser settings and the parameter values. **Tip:** Use the [close()](https://www.w3schools.com/jsref/met_win_close.asp) method to close the window. ### Browser Support | Method | | | | | | | ------ | --- | --- | --- | --- | --- | | open() | Yes | Yes | Yes | Yes | Yes | ### Syntax window\.open(URL, name, specs, replace) ### Parameter Values | Parameter | Description | | --------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | URL | Optional. Specifies the URL of the page to open. If no URL is specified, a new window/tab with about:blank is opened | | name |

Optional. Specifies the target attribute or the name of the window. The following values are supported:

| | specs |

Optional. A comma-separated list of items, no whitespaces. The following values are supported:

| | replace |

Optional. Specifies whether the URL creates a new entry or replaces the current entry in the history list. The following values are supported:

| ### Technical Details | Return Value: | A reference to the newly created window, or *null* if the call failed | | ------------- | --------------------------------------------------------------------- | ### More Examples #### Example Open an about:blank page in a new window/tab:var myWindow = window\.open("", "", "width=200,height=100");[Try it Yourself »](https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_open2) #### Example Open a new window called "MsgWindow", and write some text into it:var myWindow = window\.open("", "MsgWindow", "width=200,height=100");\ myWindow\.document.write("\

This is 'MsgWindow'. I am 200px wide and 100px tall!\

");[Try it Yourself »](https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_open3) #### Example Replace the current window with a new window:var myWindow = window\.open("", "\_self");\ myWindow\.document.write("\

I replaced the current window.\

");[Try it Yourself »](https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_open4) #### Example Open a new window and control its appearance:window\.open("", "\_blank", "toolbar=yes,scrollbars=yes,resizable=yes,top=500,left=500,width=400,height=400");[Try it Yourself »](https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_open5) #### Example Open multiple tabs:window\.open("[http://www.google.com/](https://www.w3schools.com/jsref/%3C/span%3Ehttp:%3Cspan%20class='commentcolor'%20style=color:green%3E//www.google.com/)");\ window\.open(" it Yourself »]\() #### Example Open a new window. Use close() to close the new window:function openWin() {\ myWindow = window\.open("", "myWindow", "width=200,height=100"); // Opens a new window\ }\ \ function closeWin() {\ myWindow\.close(); // Closes the new window\ }[Try it Yourself »](https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_close)
#### Example Open a new window. Use the name property to return the name of the new window:var myWindow = window\.open("", "MsgWindow", "width=200,height=100");\ myWindow\.document.write("\

This window's name is: " + myWindow\.name + "\

");[Try it Yourself »](https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_name) #### Example Using the opener property to return a reference to the window that created the new window:var myWindow = window\.open("", "myWindow", "width=200,height=100"); // Opens a new window\ myWindow\.document.write("\

This is 'myWindow'\

"); // Text in the new window\ myWindow\.opener.document.write("\

This is the source window!\

"); // Text in the window that created the new window[Try it Yourself »](https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_opener)
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