Does the Lankavatara Sutra exist anywhere online in Tibetan script, Sanskrit (Devanagari), or Chinese? Not sure what the earliest copy is we have of the Lankavatara Sutra, but wondering if it can be found online for free in copy/pastable text format (i.e. not PDF or image).
I am looking through The Kangyur on Thlib but not finding it anywhere. Does it exist in the Kangyur even, is it this?
Per Wikipedia there's a Multilingual edition, Bibliotheca Polyglotta, University of Oslo.
You can use its UI to select how much is displayed -- i.e. one sentence or one chapter at a time, or the whole text at once -- and which laanguages.
The Tibetan and Sanskrit versions are in Roman text, plus there seems to be three Chinese versions/editions, written using Chinese characters.
http://www.dsbcproject.org/ has machine-readable Sanskrit editions of various suttas, you could also try browsing there and/or writing to sanskrit@uwest.edu to ask them.
I think that Laṅkāvatāra Sūtra might be also known as the Saddharmalankavatarasutram.
You're right though that what I see online is mostly non-text image scans.

Is my tibetan link correct do you know? http://www.thlib.org/encyclopedias/literary/canons/kt/catalog.php#cat=d/0108
It might be -- see the &quot;Non-Tibetan Title&quot; -- but I can't read the Tibetan to confirm that.
Also here is a copy from the link you posted:

That more-or-less matches what the Tohoku catalog says on page 25:

I say &quot;more-or-less&quot; because the page numbers match i.e. pages 56 through 191, however the section number is off by one (i.e. 108 instead of 107).