French phrase
Merci, mais ce n'est pas nécessaire.
Meaning
Thank you, but that's not necessary.
When to use it
A polite way to decline an offer of help. It expresses thanks while gently saying help is unnecessary.
Example dialogue
Tu veux que je t'aide ?
Do you want me to help you?
Merci, mais ce n'est pas nécessaire.
Thank you, but that's not necessary.