Yes. In Jain Dharma, past wrong actions can be purified through pratikraman, alochana (sincere confession), prayschit (atonement), samyak charitra (right conduct), and increased ahiṃsā, satya, aparigraha, and self-restraint.

Jainism teaches that karma can be reduced and purified through:

• sincere repentance,
• stopping harmful actions,
• asking forgiveness from all जीवs,
• observing vows,
• and remaining vigilant in conduct.

A common Jain भावना is: “Michhāmi Dukkaḍaṃ” — “May my faults be forgiven.”

So yes, in Jain Dharma, you can purify your karmas through true inner repentance and disciplined right action.