Just found an emulator which runs in your browser.
https://www.scullinsteel.com/apple2/
The emulator has several disk images which you can select to "load" into the drive and boot from it.
You can even load DSK files from your local pc and have the emulator run them.
And you can download the emulator's DSK files to your pc.
Pretty awesome I think.
https://archive.org/details/softwarelibrary_apple
emulating the Mac, emulating the Apple II: https://archive.org/details/2InaMac
https://porkrind.org/a2/
http://www.skibo.net/6502/apple2/
https://www.calormen.com/jsbasic/
https://museum.syssrc.com/spreadsheets/apps/a2/apple2js/apple2js.html
https://inindev.github.io/apple2e/
http://www.doratomo.jp/~hal9000/oldhp/apple/apple2js_star_trek_of_yamato_apple_name_change/apple2js_yamato.html