Polypane is meant as a tool to help you develop your own web pages, but it also includes many of the "regular" browser features for convenience, like history, suggestions, tabs, permission support and more.
History and suggestions
Polypane keeps a history and will show suggestions in the address bar based on that history. Right click the navigation buttons to get an overview of previous pages. Middle click (or cmd + click) any URL in the list to open it in a new tab.
When typing in the address bar, Polypane will match each fragment in the url so if you only remember parts of a URL, you can use those to find it too. Here too you can middle click (or cmd + click) any URL to open it in a new tab. Pressing
Esc while in the address bar will revert to the current URL.
You can clear the history by going to the Edit menu, then "Clear stored data" and selecting "Clear History".
Opening web pages
Like other browsers, web pages can be visited by typing or copying their address into the address bar.
Polypane also supports opening URLs and files in a number of different ways.
- You can start Polypane with a URL as the first argument to open that url:
$ polypane https://example.com. Or on MacOs you can use
$ open https://example.com -a "Polypane". more about the CLI options
- You can drag URLs from other browsers, or HTML files from disk into Polypane to open them. Polypane is also associated with HTML and HTM files as a viewer, so you will find it in the "open with..." menu on right click.
- Lastly, Polypane registers as a HTML viewer on operating systems, so will automatically come up in lists of browsers provided by the OS, and you can even set it as your default browser.
If you're coming from another browser, the easiest way is to use the browser extension for Chrome, Edge and Firefox. Get them on the Downloads page.
Tabs in Polypane are more like projects or bookmarks, because due to memory and CPU constraints we don't keep inactive tabs in memory. This means that switching between tabs will reload your panes.
Instead of opening a new tab to search or look up documentation, you can use the Browse panel to keep the page you're working on visible while looking up something
Interacting with tabs work like you expect in other browsers. Middle clicking or ctrl+clicking a link will open it in a new tab, and links with
target="_blank" will similarly open in a new tab. Alternatively, you can right-click links to open them in the Browse panel. Right click a tab to duplicate or close it, or add a new tab.
Click and drag tabs in the tab bar to re-order them. You can right-click the + button in the tab bar to select the layout to use. This choice is automatically remembered for new tabs.
To quickly close a tab, middle-mouse click on it. You can also middle-mouse click the tab bar to open a new tab.
Double clicking on the tab bar will maximize or unmaximize the application.
Customizing your new tab setup (changing your "homepage")
By default, the new tab will show three panes with the getting started page shown in them, with a closed panel that opens on the right. But you can edit this by configuring your current tab the way you like, and then go to the Polypane (on Mac) or "File" (Window and Linux) menu and click "Set Current Tab as Homepage".
The new tab will keep all panes, overlays, the current url, panel and other settings, so you can configure it just the way you like it.
Alternatively, you can set a workspace as homepage.
Polypane supports websites that have HTTP Basic Auth or Digest Auth configured. When you fill in the login details for these sites, they will be remembered for the duration of your session. If you want Polypane to remember them permanently, check the "remember this" checkmark. They will be remembered for a specific URL.
The username and password will be encrypted and stored only on your computer. To remove them, go to the Edit menu, "Clear Stored Data" and then select "Clear Saved Auths"
Invalid or self signed certificates
For localhost, Polypane will silently allow self-signed certificates. On any other domain or for any other certificate error (like expired or the wrong host) Polypane will show a dialog showing you the url and the error and ask you if it should still open the page. It will do this once per certificate per session.
Disable Content-Security-Policy headers (CSP)
To disable CSP, go to the Edit menu and select 'Disable Content-Security-Policy headers'.
CSP settings on some sites prevent Polypane from injecting scripts needed for different features. When Polypane detects CSP issues it will show you a popup explaining the issue, and you can turn off CSP from there.
You should only disable CSP if you know what you're doing, as it does have security implications.
Polypane supports permission requests, like those for location or media access. When a permission is requested, Polypane shows a popup that will let you accept or reject the permission request, and to optionally remember the choice for this url.
To clear saved permissions, select "Clear saved permissions" under "Clear saved data" in the Edit menu.
To use the location API, you need to add a Google API key with the right permissions. To do this, add a text file called
google-api-key (no extension) in the following folder:
In the file, add your API key with quotes like so:
Any geolocation permission requests made without a Google API key available can only be disallowed or dismissed.
Motion sensors permission
When you use Polypane, you might notice that it asks for permission to use "motion sensors" while Google Chrome does not. That's because Chrome allows access to this sensor by default and won't show a permission request for it. In Polypane, we show popups for all permission requests.
Polypane will allow sound in all panes by default. You can mute all panes or limit sound to just the first pane. To do so open the global settings (the top right button in the header) and select your prefered option under "mute".
Search in page
f lets you search across all panes. All occurences of your search term are highlighted in yellow with the current matched search term in orange. You can also see where on the page matches are found in the scrollbar.
The buttons to the right of the input field let you search backward, search forward and toggle case sensitivity, respectively. While using search focus is locked into the UI so tabbing loops back. Pressing
esc or the close button clears the UI and search.
Zoom pages in and out
Page zooming is an important part of Accessibility audits, for various WCAG success criteria your page needs to be able to zoom to 200% or to 400%.
In Polypane you can zoom pages with
+/-, or with the "Zoom web pages" option in the View menu.
After zooming a page a magnifier with either a plus or minus will be visible in the address bar, and clicking that opens a UI that lets you zoom in, out or reset back to 100% again.
Due to the way Chromium work internally the zoom is set per origin, so zooming happens in all panes and is remembered when you next visit the same website.
Managing the UI
You can tweak various aspects of the UI with the following settings:
Hiding the header
To make the most of the available space on your screen, you can choose to hide the header using
shift ctrl/cmd h, or by going to the "View" menu and selecting "Toggle Header".
Changing the text size of the UI
If the font in the UI is too small you can zoom the text size in and out by going to the "View" menu and selecting "Adjust Text Size". This will show a popup that lets you resize the text through a slider or by changing the percentage value manually or by using the arrow keys (like other number inputs, holding shift/cmd/alt will increment or decrement by 10/100/0.1 respectively).
By default the text in the entire UI will be changed, but you can also choose to set the panel text size separately. Click "reset" to revert back to the default font sizes.
Managing the Cache
You can clear the cache or disable it altogether.
Clearing your cache
Polypane adheres to caching rules of websites like other browsers. To clear your cache for a reload, press
ctrl/cmd while clicking the reload button, or press
shift ctrl/cmd r.
You can also right-click the reload button and select "Empty cache and reload", or use "Empty cache and reload" in the view menu.
You can disable the cache in Polypane via the Edit menu using the "Disable cache" menu item. You can choose to set it to off, only for this session, or permanent.
Server cache settings
The Chromium devtools when open will automatically disable your cache, so if you're used to develop in Chrome with the devtools open you might not have noticed that your server sends cache headers.
Polypane doesn't automatically disable cache but instead follows the server settings by default, making it respond more like a regular browser. If you notice caching issues in Polypane, make sure that your development server doesn't send cache headers.
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