A character replacer finds and replaces text, characters, or patterns in bulk. Supports plain text matching and regular expressions for advanced pattern-based replacements across large text blocks.
Quick Presets
Find & Replace
Input Text
Output
How to Use the Character Replacer
This character replacer handles everything from simple one-for-one substitutions to complex pattern-based replacements using regular expressions. Whether you are cleaning up copy-pasted text or transforming structured data, all processing runs in your browser with no uploads needed.
Step 1: Enter your Find and Replace values
Type the character, word, or pattern you want to find in the "Find" field. Enter the replacement in the "Replace with" field, or leave it empty to delete all matches. Then paste your text into the input area.
Step 2: Choose your matching options
Four checkboxes let you fine-tune the replacement behavior. "Case-sensitive" makes the match exact — "Hello" will not match "hello". "Whole word only" adds word boundaries so "it" won't match "with". "Global replace" replaces every occurrence; uncheck it to replace only the first match. "Use regex" enables full JavaScript regular expression syntax.
Step 3: Use presets for common cleanups
The preset buttons at the top handle common copy-paste formatting artifacts. Smart quotes (" ") and curly apostrophes (') are often inserted by word processors and cause issues in code or databases. Em dashes (—) are replaced by hyphens (-). Non-breaking spaces (which look like regular spaces but are a different Unicode character) are replaced with standard spaces.
Using Regular Expressions
Enable the regex checkbox for pattern-based replacements. Common patterns: \d+ matches numbers, \s+ matches whitespace, [aeiou] matches vowels. You can also use capture groups — the replacement field supports $1 and $2 references. If your pattern is invalid, an error message will appear below the output.
FAQ
Does this support regular expressions?
Yes. Enable the 'Use regex' checkbox and enter any valid JavaScript regular expression in the Find field. Patterns like \d+ (numbers), \s+ (whitespace), or [aeiou] (vowels) all work.
How do I replace all occurrences vs just the first one?
Check the 'Global replace' option to replace every match. Uncheck it to replace only the first occurrence in the text.
Can I replace special characters like smart quotes?
Yes. Use the preset buttons at the top: Smart quotes to straight, Curly apostrophes to straight, Em dash to hyphen, and Non-breaking spaces. These handle common copy-paste formatting issues.
What does 'Whole word only' do?
It adds word boundary markers so 'cat' only matches the standalone word 'cat' — not 'category', 'catch', or 'concatenate'. Useful for precise word-level replacements.
Is this tool free?
Yes, completely free. All processing happens in your browser — nothing is sent to any server.
Can I use it to remove a character entirely?
Yes. Leave the 'Replace with' field empty and press Replace. Any matched text will be deleted from the output.
Does case-sensitive mode affect regex patterns?
Yes. When case-sensitive is unchecked, the 'i' flag is added to the regex. When checked, the pattern must match the exact case in the text.