How would you say it another way?
No worries.

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"Don't worry"
"Don't worry about it"
"Don't mention it"
"No problem"
"[It's] No biggie"         (slang: "biggie" = "big thing")
"[It's] No big deal"
"[It's] No big one"

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I usually say "no worries" when someone apologizes to me for something very minor. You can also say, "don't sweat it, bro!"

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You'd say "no worries" in response to "thank you". Other options are:
-You're welcome
-No problem
-Any time
-(I'm) happy to help