Web engine recommendation.

[ronnifadhlillah]

Any suggest web engine available in pywebview which is very light ? may running under old operating systems. I want my apps running in all version of operating systems.

Thanks

[KingEmma7]

There isn't one pywebview engine that guarantees support for every OS version. The engine, Python runtime and platform bindings each have their own minimum requirements.

For a small packaged app, I'd start with the platform's webview: WKWebView on macOS, WebKit2/GTK on Linux, and WebView2 on supported Windows versions. This avoids bundling a separate CEF browser with your app; it doesn't establish which engine uses the least RAM. The engine table lists the available backends, and the current installation source requires Python 3.10+.

For old Windows specifically, mshtml is the legacy IE backend and is deprecated. Modern JavaScript/CSS may not work there. WebView2 version 109 was the last to support Windows 7/8/8.1, according to Microsoft's announcement.

Which minimum Windows/macOS versions and Linux distributions do you need? Also, does “light” mean download size, RAM or startup time? Those details would let you choose and test a realistic backend set. I haven't benchmarked the engines or tested your target machines.