How do I open the JavaScript console in different browsers?

Question

Web browsers provide a JavaScript console as part of their developer tools. This console is useful for the following reasons:

• Errors and warnings that occur on a web page are logged into the console.
• JavaScript commands for interacting with a web page can be executed in the console.

What are the keyboard shortcuts for opening the console in different browsers?

Answer 1

Chrome

Opening the “Console” panel of Chrome’s DevTools:

• Windows and Linux: Ctrl + Shift + J

• Mac OS: Cmd + Opt + J

Note: In addition to the “Console” panel, there also exists a smaller slide-up console which can be toggled via Esc while any of the other panels is active.

Full documentation

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Firefox

Opening the “Console” panel in Firefox’s Developer Tools:

• Windows: Ctrl + Shift + K

• Mac OS: Cmd + Opt + K

Note: In addition to the “Console” panel, there also exists a smaller slide-up console which can be toggled via Esc while any of the other panels is active.

Full documentation

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Internet Explorer

Opening the “Console” panel in Internet Explorer’s F12 Developer Tools:

• F12, then click on the “Console” tab

Note: In addition to the “Console” panel, there also exists a smaller slide-up console which can be toggled via Ctrl + ` while any of the other panels is active.

Full documentation

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Safari

Note: In order to view the console in Safari, you have to enable the “Show Develop menu in menu bar” setting in the “Advanced” pane of Safari’s preferences (screenshot).

Opening the “Console” panel in Safari’s Web Inspector:

• Cmd + Opt + C

Note: In addition to the “Console” panel, there also exists a smaller slide-up console which can be toggled via Esc while any of the other panels is active.

Full documentation

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Opera

• Windows and Linux: Ctrl + Shift + I
• Mac : ⌘+⌥+I

Full documentation

Answer 2

To indirectly reach the Console in Opera (checked on v9.6) the shortcut is Ctrl+Shift+i while on Safari 5 (on Windows) it is Ctrl+Alt+i

I wish all the browser makers could get together to standardize the keyboard shortcuts.

Update: It appears that the REPL tab under the Scripts tab in Opera Dragonfly in Opera 11 is similar to the Console option that was available in previous Opera versions.

I did not found much documentation on REPL after a cursory search, except for this article which has an indirect reference.

I tried this command in REPL with the Google home page open & it executed fine i.e. it hid the Google logo - document.getElementById('logo').style.visibility = 'hidden';