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ByteSize Daily Tools
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How it works

Paste your text, type what you want to find and what to replace it with, then click Replace all. Every match is swapped in a single pass and the tool reports how many replacements it made. Turn on "match case" to make the search case-sensitive, "whole word" to avoid matching inside longer words, or "regex" to use a full regular expression — including capture groups you can reference as $1, $2 in the replacement. If a regex pattern is invalid, you'll see an error rather than any change to your text. Everything runs locally in your browser; nothing is uploaded.

Find & Replace

Replace text in bulk, with optional match case, whole word, and regex.

Characters 0 Words 0 Lines 0
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FAQ

How do I replace every occurrence at once?

Type the text you want to find and the text to replace it with, then click Replace all. Every match in the box is replaced in one pass, and the tool tells you how many replacements were made.

What does the "whole word" option do?

Whole word only matches your search term when it stands alone. For example, searching "cat" with whole word on will match "cat" but not "category" or "concatenate".

Can I use regular expressions?

Yes. Tick the "regex" option to treat your search as a JavaScript regular expression. You can use groups and backreferences like $1 in the replacement field. If the pattern is invalid, the tool shows an error instead of changing your text.

Is my text uploaded anywhere?

No. The find and replace runs entirely in your browser. Nothing you paste is transmitted to a server or stored.

Related tools

Case Converter · Remove Line Breaks · Text Sorter · Word / Character Counter

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