The ultimate advance in Web browsing without an address bar Sleipnir 4 for Mac
Free | Version 4.3 | For OS X 10.6 or later
- Design with purpose
down to the last pixel - Gestures that captivate you
the moment you touch - Quickly find open tabs
even when they reach 100 - How to use
Design with purpose down to the last pixel
The designer of Sleipnir 4 for Mac designed the Web browser from absolute scratch to make the Web for people a more personal and stress-free experience. As a result, we were able to place the number of advanced features such as the easy to view thumbnails that display pages and the evolved search fields that can find open pages in no time into the breathtakingly beautiful and simple toolbar. Each part of the bold looking design has a purpose. We will introduce to you some of them below.

The page title is shown when the cursor is aligned and when switching tabs. It has been designed so that the page title can be checked at the most necessary timing.
You can also click addresses to modify them. All the necessary functions are available.
The list of candidates have been designed so that you can quickly arrive at the page you want to open. The sites you want to open appears compact, easy to view, and easy to select. This is definitely a Web browser to compare with the one you use now.
Even with the bookmark bar shown, the beauty and the slimness that overwhelms others doesn't change.
Thumbnail tabs to understand what is inside
Tabs originally became smaller and smaller the more you open them making the shrunken title not very useful for telling what a page is. Sleipnir displays thumbnails of pages in the easiest to use location within the tool bar. This makes it possible to open more Web services and sites in a way that is easy to see and use.
Why the address bar should be removed
These days, rather than directly inputting addresses(URLs), users are much more likely to perform searches or open bookmarks. Regardless of this, general browsers have a large box for inputting addresses occupying the majority of the tool bar. Sleipnir has boldly rearranged these elements, obtaining both modern logic and simple beauty.
The truly evolved address bar and search bar
We think you can not call "an address bar that can also search" an address bar that is merged together with a search bar. Sleipnir has been prepared with "Portal Field" for finding open pages in no time at all. Searches, bookmarks, previously viewed pages, addresses, you can immediately open the pages you want to open from here.
Portal Field finds pages from just typing 4 characters
With Portal Field you can find the pages you want to open immediately after typing just 4 characters. The unorganized branched-out pages often found in past browsers have been scrapped for a compact easy-to-view list of suggestions uniquely designed to be sorted by site. You can use it to directly jump to the site you were thinking of with the least possible effort.
The amazingly slim just 54 pixel toolbar
Through designing what a Web browser should like from scratch, we have also made a more compact tool bar. The tool bar far narrower than all of the other main browsers makes it possible to view the screen with plenty of room without getting in the way of your Web browsing. Regardless of how thumbnails have been displayed until now, this super slim and beautiful Sleipnir can be called the evolution of the Web browser.
Sleipnir is on the far left/Full-scale/Comparison with current version of January, 2013
Other features
WebKit base
Sleipnir implements the WebKit rendering engine which quickly and accurately displays Web pages.
Web Inspector
Web Inspector is a powerful Web development tool. Use it to check and edit the structure and scripts of Web pages.
Retina display
An extremely smooth-looking and high definition displayed has been achieved for Retina display supported Mac devices.
Add search services
The search fields available in many Web sites such as Wikipedia and Amazon can be added to Sleipnir.
Security and Privacy
WebKit and OS X security features are being used making the application safe. Furthermore, private browsing is also available.
Liking many Web services
Sign in to your main Web services just once and then forever quickly post to your desired Web services when you want.
Sync bookmarks
Sync bookmarks with Sleipnir on your iPhone, iPad, Android or Windows device.
Differences with Mac App Store version
The Mac App Store version of Sleipnir has had to remove some basic features due to restrictions because of the Mac App Store. If you want to quickly use all the features available, we recommend installing the Sleipnir (Black Edition) on this page. Of course, both versions of Sleipnir are completely free.
About the uniqueness of each of the Sleipnir platforms
Sleipnir is individually designed for each platform in order to pursue a form that best fits that platform. Please enjoy the design truly optimized for Mac not found in other Web browsers.
About extensions
Sleipnir for Mac is a modern Web browser finely designed down to the last pixel. Because of this, extensions are not currently supported. However, we are always looking for ways to beautifully bring to life the extensions you love. If there are any extensions you like, please request them from the form below.



