Translation guide
How to express that something is not a problem, not important, or not worth worrying about in Japanese.
To say that something is not a serious issue, not a bother, or easy to handle.
A common, natural way to say 'it's not a big deal' or 'it's nothing serious'. Used in casual conversation.
I was a little late, but it's no big deal.
Literally 'it's okay' or 'I'm fine'. Often used to brush off concerns or apologize lightly.
Sorry, I spilled the coffee. No big deal, don't worry.
Means 'don't worry about it' or 'never mind'. Used when someone apologizes or seems concerned.
Sorry I'm late. No big deal.
Means 'no problem'. Slightly more matter-of-fact than 大丈夫.
Can you fix this? Yeah, no big deal.
A very casual, sometimes dismissive way to say 'it's nothing' or 'not really'. Can sound cold if used in the wrong context.
Can come across as indifferent or rude if not used with close friends.
Are you mad? No, it's no big deal.
To say 'you're welcome' or 'it was nothing' after being thanked.
The standard 'you're welcome'. Can feel a bit formal or stiff in very casual situations.
Thanks for helping. No big deal, you're welcome.
A humble, casual way to say 'no, not at all' in response to thanks. Very common in daily conversation.
A stronger, more emphatic way to say 'not at all' or 'don't mention it'. Polite and humble.
To modestly say that something was easy or not impressive.
Used to say 'it's nothing special' or 'it's not a big deal' about one's own ability or accomplishment.
You're a great cook! Nah, it's no big deal.
A modest, trailing-off phrase meaning 'it's not that much' or 'not really'. Often used when receiving compliments.
That's amazing! Oh, it's no big deal.
大したことじゃない explicitly says 'it's not a big deal'. 大丈夫 is a general 'it's okay' and can be used for reassurance. 問題ない is more like 'no problem' in a practical sense. All three can be used to downplay a situation, but 大丈夫 is the most versatile.
Do not translate 'no big deal' word-for-word as 大きくない取引 or similar. It will not be understood.
ありがとう！ いえいえ、大したことじゃないです。
Thank you! No big deal, it was nothing.
You really helped me out. No big deal, not at all.