No — not automatically.

In Jain Dharma, sincere repentance, pratikraman, confession, and a firm vow not to repeat it are important and purifying, but they do not instantly erase the karma already bound by the act. They stop further bondage and help with śuddhi through true remorse and restraint.

For a layperson, the right Jain approach is:

• sincere pratikraman
• true glāni (remorse)
• niyama not to repeat
• stronger self-control and avoidance of such content

So the correct answer is: No, not by confession alone; but yes, sincere repentance and non-repetition help purification in Jainism.