Here is a simple and commonly recited Jain Shanti prayer:

Khāmemi Savva Jīvāṇaṁ

Sanskrit/Prakrit text:

खामेमि सव्व जीवाणं, सव्वे जीव खमंतु मे। मित्ती मे सव्व भूएसु, वेरं मझ्झं न केणई॥

Meaning

• I forgive all living beings.
• May all living beings forgive me.
• May I have friendship toward all beings.
• May I have enmity with none.

Spiritual meaning

This prayer reflects the Jain ideals of:

• Kshama — forgiveness
• Maitri — friendship and goodwill
• Ahimsa — non-violence
• Samata — equanimity

It helps calm the mind, remove anger, and develop compassion toward every जीव.

If you want, I can also give you a longer Jain Shanti Stotra in Sanskrit/Prakrit with meaning.