Alternatives to Sleipnir
Japanese Chromium browser from Fenrir built around mouse gestures and text rendering. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Sleipnir
Japanese Chromium browser from Fenrir built around mouse gestures and text rendering.
Replacements
Listings that take over the same core job as Sleipnir.
Google Chrome
Google's browser, the Chromium-based one most web development is tested against.
Google Chrome keeps the Chromium engine with the largest extension library and updates every four weeks, adds Linux, but ties closely into Google account and advertising systems.
Microsoft Edge
Microsoft's Chromium-based browser, bundled with Windows.
Microsoft Edge stays on Chromium with vertical tabs, tab groups and sleeping tabs for heavy tab use, runs Chrome extensions, and adds Linux support.
Vivaldi
A Chromium browser for people who want tab stacks, split screen and a mail client in the same window.
Vivaldi stays on Chromium with tab stacking, tiling and vertical tabs for large tab counts, deep interface settings, and builds for Windows, macOS and Linux.
Opera
Chromium browser with an ad blocker, a free proxy VPN and a messenger sidebar.
Opera keeps a Chromium base and adds an ad blocker, a no-account proxy VPN and sidebar messengers, with Linux builds, but remains closed source.
Brave
A Chromium browser that blocks ads and trackers out of the box, with no extension to install first.
Brave moves to an open-source Chromium browser with ad and tracker blocking on by default and builds for Windows, macOS, Linux and Android.
Lunascape
Japanese browser with built-in ad blocking and a crypto wallet.
Lunascape is another Japanese browser for Windows and macOS with built-in ad blocking and a customisable dashboard, but it bundles a crypto wallet and remains closed source.
Floorp
A Firefox build from Japan with vertical tabs, workspaces, split view and web panels already wired in.
Floorp is an open-source Firefox build from Japan with vertical tabs, workspaces and split view, trading the Chromium engine for Gecko and Firefox add-ons.
Also worth comparing
These listings name Sleipnir as their own alternative, so the relationship runs both ways.
Naver Whale
Korean Chromium browser with a sidebar, split tabs and built-in capture tools.
Sleipnir is a closed-source Japanese Chromium browser built around mouse gestures and tab thumbnails, with Windows and macOS builds and mostly Japanese documentation.
Similar software
Related functionality, not a direct replacement.
