Yes. In modern editions and online publishing, Jain scriptures are typically printed in Devanagari.

However, historically:

• Ardhamagadhi and many Prakrit manuscripts were written in various scripts such as Brahmi and later regional scripts (e.g., Sharada, Siddham, etc.).
• For printed editions today, both Digambar and Shwetambar traditions commonly use Devanagari, though you may still encounter manuscripts in other scripts in older collections.

So, Devanagari is the standard for current public reading and study, but earlier and some regional manuscripts may be in different scripts. If you’d like, I can note the script used for a specific text or stotra.