Question 1

Which flags are supported?

Accepted Answer

g (global), i (case-insensitive), m (multiline), s (dotall), u (unicode), y (sticky).

Question 2

Is my text uploaded to a server?

Accepted Answer

No. Testing and replacement run locally in your browser; nothing is uploaded.

Question 3

How do I use capture groups in replacement?

Accepted Answer

Use $1, $2, etc. to reference groups, and $& for the full match.

Match Test

Replace Text