Adobe Flash was a technology for putting animation, games, video and interactive content on web pages, popular from the late 1990s through the early 2010s. It needed a browser plugin called Flash Player, and that plugin was officially killed off at the end of 2020.
For years Flash was how the web moved. Cartoons, browser games, restaurant menus that spun and bounced, all ran on it. But it had a long history of security holes, drained battery life, and never worked well on phones, which is what doomed it once the iPhone refused to support it. The web shifted to open standards instead: HTML for structure and native video, CSS for animation, and JavaScript for interactivity. These do everything Flash did without asking the visitor to install anything.
The 2010 turning point is worth remembering. Apple’s Steve Jobs published an open letter explaining why the iPhone and iPad would never run Flash, citing battery, security and the rise of HTML5. Designers who had built whole sites in Flash suddenly faced a growing audience that simply could not see them on mobile, and that audience only kept growing as smartphones took over.
The deeper lesson is about lifespan. Flash sites that were never rebuilt stopped working the moment the plugin was pulled, taking years of content offline overnight. Anything built on a single proprietary plugin carries that risk: when the vendor walks away, your work goes dark with it, and no amount of careful design changes that.
At TopDevs we build on open web standards precisely so a client’s site does not depend on one vendor’s plugin that could be switched off years later.
