Sleipnir

Sleipnir is a name associated with at least two notable subjects. In Norse mythology, Sleipnir is Odin’s eight‑legged horse, born when Loki shapeshifted into a mare and mated with the stallion Svaðilfari. Sleipnir is described as the best of horses and is capable of moving between the nine realms, allowing rapid travel across Asgard, Midgard, and the underworld. The horse is typically depicted as having eight legs and is often regarded as a symbol of speed, endurance, and magical transport. The etymology of the name is uncertain, with translations suggesting meanings related to slipperiness, swiftness, or eight feet.

In modern times, Sleipnir is also the name of a web browser developed by Fenrir, Inc. The Sleipnir browser is a cross‑platform product available for Windows, macOS, Android, and iOS, and is known for its emphasis on customization and flexibility. It offers features such as flexible tab management, gesture navigation, and a range of interface options and extensions to tailor the browsing experience. The project has been particularly popular in Japan and among users who value extensive configurability.

Beyond mythology and software, the name Sleipnir has been used in various cultural and commercial contexts to evoke speed, mobility, and a sense of mythic power. As a mythic figure, Sleipnir remains a prominent symbol in Norse literature and art; as a software brand, it represents a product positioned on customization and user control.