Iris Browser
Iris Browser was a technologically advanced but short-lived project that was ultimately absorbed to form the foundation of the modernized BlackBerry web browser.
ICab Web Browser
iCab is a niche, long-running web browser primarily for Apple's Macintosh platforms, developed mainly by a single German engineer, Alexander Clauss.
Orion Browser
Orion is a fast, privacy-focused, and power-user-friendly browser for Mac and iOS that combines Safari's efficiency with the vast extension libraries of Chrome and Firefox.
Origyn Web Browser
the Origyn Web Browser is a specialized window into a decentralized ecosystem of certified physical and digital assets
QtWeb
QtWeb was a lightweight, independent browser that succeeded for a time as a nimble alternative but ultimately failed because it couldn't maintain its own rendering engine for the modern web
NetFront Web Browser
NetFront is a web browser developed by Access Co., Ltd. (formerly Palmlogic). Unlike mainstream browsers, its primary role was not on desktops