Certainly — here is a very short Jain repentance prayer you can say in about 1 minute:

Micchami Dukkadam Prayer

> I bow to the Arihants and Siddhas. > If I have hurt any living being by mind, speech, or body, knowingly or unknowingly, > if I have acted with anger, pride, deceit, greed, or attachment, > please forgive me. > I also forgive all beings. > May my soul remain in right faith, right knowledge, and right conduct. > Micchami Dukkadam.

Very short version:

> I ask forgiveness from all living beings for any harm I have caused. > I forgive all beings. > Micchami Dukkadam.

If you want, I can also give you a Gujarati version or a more traditional Jain version.