The Desktop Web Browser for Smartphone Users “Sleipnir 3 for Windows / Mac (3.5) “released. – Drastically change your smartphone life!

category : for Mac, for Windows, Sleipnir 4

Today is the day.
Sleipnir 3 has taken a new step. Yes, today is the day of the official release of Sleipnir 3 for Windows / Mac (3.5).

All the release preparations have been completed. If you are can not wait, please feel free to download it immediately.

If you are kind enough to spare some of your time for us, please read on. We would like to explain just how special this project is.

The desktop browser that bridges the gap between your desktop and your smartphone.

From Sleipnir 3 for Windows / Mac (3.5), we are focusing on smartphone users.

The number of smartphone users has been increasing rapidly.
The internet access via smartphone has also considerably increased.
Both desktop and smartphone has its advantages, and many users use both depending on the situation.

However, there is an inevitable gap between desktop and smartphone.

Suppose you would like to send a map you are viewing on your desktop to your smartphone. What would you do?

Would you copy and paste the URL and send it as a text message? Would you search for it again with your smartphone? Or would you sync your bookmarks? Although there are various ways, aren’t they all a little burdensome?

We believe that the above burdensome situation is quite common for those who use both a desktop computer and smartphone.


Another situation.


Do you use any web services such as Twitter, Facebook, Dropbox, Evernote or anything else?

When you would like to save images to the cloud and check later with your smartphone or post actively to social services, we imagine that you use your smartphone as well as your desktop.

Isn’t your browser fully loaded with all sorts of add-ons and bookmarklets? Don’t you use the web service that you choose first just because it is burdensome to set up another environment again?


Sleipnir 3 for Windows / Mac (3.5) will solve your problems.

Smartphone App Linker

Sleipnir 3 for Windows / Mac (3.5) links smartphone apps such as Call, Map and browser at once.

Seeing is believing.

Please check out the video below.

You can do the followings;

  • Click a phone number being viewed on your desktop and instantly call it from your smartphone.
  • Click a phone number being viewed on your desktop and register it with your smartphone address book.
  • Open a website being viewed on your desktop immediately with your smartphone.
  • Send text from your desktop and instantly insert them into a messaging app on your smartphone.
  • Send an address being viewed on your desktop to your smartphone and open instantly it with a map app.
  • Send text from your desktop to smartphone, copy them and forward them to another app.


You need a smartphone app called Sleipnir Linker to use this Smartphone App Linker function. It is free and easy to set up. Please give it a go.

*iPhone version is under review, so it will be released as soon as it is approved.

Download Sleipnir Linker (Android version)

Web App Linker

Sleipnir 3 for Windows / Mac (3.5) lets you use various web services as if you are using one of the Sleipnir 3 functions.

You can right-click an image to share or save to the cloud. You can also register a website to Read Later by right-clicking.

As right-clicking is a quite familiar browsing action, you won’t forget how to use the web services after setting them up.

We support the following services and are planning to support more.
Share : Twitter, Facebook, Google+, LinkedIn, Tumblr, Flickr(Images only)
Save : Dropbox, Evernote, SkyDrive
Read Later : Readability, Instapaper, Pocket(previously Read It Later))

You can select multiple services in for each category such as Share and Save, and post to them all in one go.
For example, you can post to both Twitter , Facebook and Google+ all in one go. ( It is actually not very common to be able to multi-post to Google+.)

Thease functions all link with web services on the cloud service, Fenrir Pass. That means that you can login to web services from Sleipnir 3 under different environments without logging in or authenticating again if you have a Fenrir Pass ID. Yes, just a single sign on! (Coming soon to Sleipnir Mobile for iPhone / iPad!)

Furthermore, OAuth authorization is applied for web services supporting OAuth, so it is secure. For those that do not support OAuth, IDs and passwords are stored not on the server but Sleipnir 3 local environment, so it is secure as well.

Other browsers are improving to use web services themselves. Sleipnir will be improved as a platform for web services for users to use web service functions.

Details of Fenrir Pass Connect

Supporting WebKit

Sleipnir 3 for Mac supported WebKit from before and now Sleipnir 3 for Windows supports WebKit as well. If you newly install Sleipnir 3 (not as update), WebKit is set as the default rendering engine.

WebKit is a rendering engine used in Google Chrome and Safari, and it displays websites a lot faster than other engines.

So Sleipnir 3 for windows will display websites a lot faster.

Not only does Sleipnir 3 for Windows now support WebKit, but also now supports Google Chrome extensions. You can choose the ones you like and customize them freely. (I manage passwords with LastPass and translate words with Translate selection.)

Google Chrome extensions can be downloaded from below.
Chrome Web Store

We have also implemented [Web Inspector] that is implemented in Chrome and very popular among web developers. You can open it from the [Inspect element] at the bottom of the right-click menu.

Smartphone linking is supported by these practical functions.

*Please note that Gecko engine is not supported anymore.

Future roadmap

Having smartphone linking as Sleipnir’s core function, we will support more web services as well as those functions and plug-ins that are widely used in Sleipnir 2 for Windows.

Needless to say, Sleipnir Mobile will be improved as a Sleipnir Family member. Sleipnir will be updated actively form July onwards as well. Please look forward to it!

Please download Sleipnir 3 from here.

Please download Sleipnir Linker from the below.
Download Sleipnir Linker (Android version)
Download Sleipnir Linker (iPhone version) is coming soon.

Sleipnir is COOL!

If you feel so, please share the feeling by using Sleipnir 3 Web App Linker function.

If you are a little impatient, please share from below.

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