don't worry; no worries; never mind
Polite phrase used to reassure someone that they need not be concerned. Often used when declining an offer or when someone apologizes.
"Sorry I'm late." "Don't worry about it."
Shall I help you? No worries, I'm fine.
Means 'don't mind' or 'don't worry about it'; more casual and can be used for minor concerns, whereas ご心配なく is more formal and specifically addresses worry.
Standard polite phrase; the kanji 心配 is commonly used.
Formal spelling using the kanji 御 for the honorific prefix; less common in everyday writing.
Formed from the honorific prefix ご (御) + 心配 (worry) + なく (adverbial form of ない, 'not'). Literally 'without worry'.