[rockdoe]

Are there any small engines that have enough of the web implemented that they can run it?

[aryonoco]

The only other (semi) alive browser engine today is Servo, originally by Mozilla (and the reason Rust was created for), which is these days a Linux Foundation project funded by Igalia.

There are small web engines anymore. Every other one, from khtml to presto to trident, is dead.

[TylerE]

Opera?

[abhinavk]

Opera uses Chromium so it's covered under Blink/V8.

[None4U]

Presto hasn't been used for years