In Jain tradition, “Laghu Shanti” means short (laghu) peace (shanti) prayer. Usually, when people say “Laghu Shanti mantra”, they mean this simple universal peace verse:

Main Laghu Shanti Mantra (short form)

Sanskrit (Devanagari): सर्वे भवन्तु सुखिनः सर्वे सन्तु निरामयाः। सर्वे भद्राणि पश्यन्तु मा कश्चिद् दुःखभाग्भवेत्॥ ॐ शान्तिः शान्तिः शान्तिः॥

Transliteration: sarve bhavantu sukhinaḥ sarve santu nirāmayāḥ sarve bhadrāṇi paśyantu mā kaścid duḥkha-bhāgbhavet om śāntiḥ śāntiḥ śāntiḥ

Simple Jain meaning (arth):

• सर्वे भवन्तु सुखिनः – May all living beings be happy.
• सर्वे सन्तु निरामयाः – May all be free from disease and suffering.
• सर्वे भद्राणि पश्यन्तु – May all see and experience what is good and auspicious.
• मा कश्चिद् दुःखभाग्भवेत् – May no one have to share in sorrow.
• ॐ शान्तिः शान्तिः शान्तिः – Let there be peace, peace, peace.

This reflects core Jain values of ahimsā (non‑violence) and universal friendship for all jīvas. Both Śvetāmbara and Digambara Jains recite such shānti‑paths; the exact wording may vary slightly, but the meaning is the same.

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Longer “Laghu Shanti” Stotra

In some Jain traditions (especially Śvetāmbara), “Laghu Shanti” is also the name of a longer stotra dedicated to Bhagwān Shāntināth, with many verses beginning with invocations to peace. That is a full prayer, not just one line, and is usually recited in temples or during special shānti‑vidhis.

You can read the full Laghu Shanti stotra text here