Try out the Blink engine! We have released Sleipnir 4 for Windows (Blink Engine Preview Build) exclusively on the blog!

category : for Windows, Sleipnir 4

Sleipnir 4 for Windows released!

We are conducting a joint survey and test to decide whether to implement into Sleipnir 4 for Windows the Blink engine which is currently scheduled to be added to Chromium project.

Today, we have released the Sleipnir 4 for Windows (Blink Engine Preview Build) so that users can test out a product as soon as possible to arrive at a decision on whether to implement the Blink engine in Sleipnir 4 for Windows or not. This release is of a quality that can be used normally, but as there are a few caution points, please make sure to check them first, and then try out the Blink engine supported version of Sleipnir 4 that is even faster the WebKit engine version.

(To put it accurately, it supports both Blink and Trident engines)

Firstly a comparison of speed between WebKit and Blink

There are a number of benchmark sites available out there, but for this test we decided to compare using Octane JavaScript Benchmark. This is a JavaScript benchmark so we can not call this a real test of Blink engine performance, but it seems that the Blink and V8 JavaScript engines have a stronger link now because it is even faster than before. We are looking forward to even more improvements between the Blink engine and V8 JavaScript engine.

WebKit version- Octane JavaScript Benchmark

WebKit エンジンベンチマーク

WebKit 版バージョン情報
(Version information from chrome://version)


Blink version – Octane JavaScript Benchmark

Blink 版ベンチマーク

Blink 版バージョン情報
(Version information from chrome://version)


In addition to the Octane JavaScript Benchmark there are also a number of famous benchmark testing sites such as SunSpider 1.0 JavaScript Benchmark and Kraken JavaScript Benchmark. Please feel free to test them out!

Caution points (Please make sure to read)

The Blink engine is currently not being released as an official version. Consequently, Sleipnir 4 for Windows (Blink Engine Preview Build) released today is being treated as a β version.

In order to make it easy for you to try out, we have prepare an installer version and a zip version. However, if you do use the installer version and the official version of Sleipnir 4 is already installed, it will be overwritten. We are not proving a basic means of downgrading from the Blink Engine Preview Build. In order to avoid this issue, please install the zip version.

Download the Blink version

Sleipnir 4 for Windows (Blink Engine Preview Build) :Installer version

※ If Sleipnir 4 is already installed, it will be overwritten. It is not possible to downgrade to the released official version.

Sleipnir 4 for Windows (Blink Engine Preview Build) :zip version

※ Extract it to your desktop or other desired location and try it out!

If you really want to downgrade to the official version…

If you have mistakenly overwritten the official version, and you really have a reason to want to downgrade…

When using Windows Vista/7/8

C:\Users\User name\AppData\Roaming\Fenrir Inc\Sleipnir\setting\modules\ChromiumViewer\Default\Web Data
C:\Users\User name\AppData\Roaming\Fenrir Inc\Sleipnir\setting\modules\ChromiumViewer\Default\Web Data-journal

Please delete the above 2 files.


If you are thinking “The official version is not out yet?”, then please install the official version and wait for any developments. Once Chromium starts supporting the Blink engine, Sleipnir 4 will follow and be automatically updated. (It was announced by Google that it would be released 10 weeks after its announcement which would be in mid June, but we are predicting it will be released at the beginning of July)

・Download the official version of Sleipnir 4 for Window (WebKit version)

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