OmniWeb

» see omnigroup.com/omniweb as it lived, on the wayback machine

~ the obit ~

OmniWeb launched 17 March 1995 on NeXTSTEP, which puts it among the oldest continuously developed browsers on any operating system. The Omni Group, the Seattle shop that would later become famous for OmniGraffle and OmniFocus, built it as a native Objective-C browser for the workstation OS that almost nobody used. When Apple bought NeXT in 1996 and slowly turned its OS into what became Mac OS X, OmniWeb came along for the ride and arrived on Mac OS X 10.0 in 2001 as one of the very first browsers on the new platform.

For a few years it was the best Mac browser available. Internet Explorer for Mac was wheezing, Camino was still gestating, Safari did not exist yet. OmniWeb 4.0 and 4.5 picked up real users among Mac power-users willing to pay 30 dollars for a browser. Version 5.0 in 2004 introduced the vertical tab drawer with live page thumbnails, an idea that browsers spent the next decade quietly stealing. Version 5.5 in 2005 switched the rendering engine from Omni's own to WebKit, which made it compatible with everything Safari rendered and made the Omni Group's job much smaller.

By 2007 Safari was bundled, free and good enough, and OmniWeb's paying user base eroded. The Omni Group transitioned OmniWeb to freeware on 24 February 2009 and shifted engineering toward productivity apps. The final stable release was 5.11.2 in July 2012. There was no formal funeral, just an increasing gap between releases until people stopped expecting them.

omniweb sat in the part of mac history i can read about but cannot personally remember. the nextstep lineage, the indie browser shop, the vertical tab drawer. by the time omniweb was something a turkish user could actually have bought, in the 2004 mac os x window, i was on a windows xp laptop with firefox 1.0 and ttnet adsl and never seriously considered a switch.

~ the rap sheet ~

~ the engine switch ~

Through version 4.5, OmniWeb used its own HTML rendering engine, which had been written for NeXTSTEP and could not keep up with the rate at which the modern web was breaking standards. JavaScript-heavy sites, CSS-positioned layouts and early Ajax patterns all started misrendering. Maintaining a private engine was not viable for a small Seattle shop.

Version 5.5 in late 2005 dropped the Omni engine and adopted WebKit, the same engine Apple was shipping inside Safari. The trade was straightforward: lose the rendering quirks and pick up site compatibility with every browser Safari rendered, but also become substantially the same browser as Safari at the layout layer. The remaining differentiation moved to the UI, where the vertical tab drawer, the per-site preferences and the workspace model still gave OmniWeb a distinct personality.

~ what the omni group did instead ~

The freeware transition in 2009 was the practical concession that the browser business was over for a paid Mac product. The Omni Group put its engineers on OmniGraffle, OmniFocus, OmniOutliner and OmniPlan, all of which still ship in 2026. OmniWeb stayed up as a free download with periodic builds that kept the engine current for a few more years.

The 5.11.2 build of July 2012 was the last one anybody outside the company has seen ship. A "preview 6.0" build occasionally surfaced in private community threads but never became a public release. The Omni Group has been polite about not killing it formally, just as it has been polite about not maintaining it.

~ the long tail ~

The vertical tab drawer with page thumbnails became standard in Vivaldi, in Microsoft Edge, in Arc and in Safari's tab grid view. The per-site preferences model became standard everywhere. OmniWeb does not get credited for either, which is the usual price of being early on a small platform.

You can still download OmniWeb 5.11.2 from the Omni Group's archive page in 2026, run it on a modern Mac in some kind of degraded compatibility mode and watch a 17-year-old browser try to load gmail. It will fail. The browser itself will not crash. That is roughly the dignity an indie Mac browser shop earned by going free instead of going bitter.

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