Regex · On this device

Regex replace

Replace with a pattern. $1 groups are allowed.

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Runs in the browser. Heavy patterns may freeze the tab. Templates cover common shapes only.
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How it works, what you get, limits

Hvad det gør

Replace with a pattern. $1 groups are allowed.

Sådan

Enter the pattern and replacement.

Hvad du får

A rewritten draft. Copy it locally.

Valg og sammenligning

JavaScript replacement syntax.

Find/replace is for plain swaps; this page is regex.

Grænser

A bad pattern fails.

FAQ

Groups?

Yes. Use $1, $2 in the replacement.

Find/replace page?

That page is for plain swaps. This page is for regex.