What is the difference between case sensitive and case insensitive search?

Case sensitive search treats 'Hello' and 'hello' as different words, while case insensitive treats them as the same. Use case sensitive when you need exact capitalization matches.

How do regular expressions work in this tool?

Regular expressions allow complex pattern matching. For example, '\d+' matches numbers, '[A-Za-z]+' matches words. Enable the regex option and enter your pattern in the find field.

What does 'Whole word only' do?

Whole word matching ensures only complete words are replaced, not partial matches. For example, finding 'cat' won't replace 'caterpillar' when enabled.

Can I undo a replacement?

Yes, you can modify the replacement text and run the tool again, or use the original text to start over. The tool processes text instantly without permanent changes.

Is there a limit to text size?

The tool can handle large documents, but very large files (over 10MB) may affect browser performance. For extremely large files, consider processing in smaller chunks.

How do I replace multiple different terms at once?

For multiple replacements, run the tool multiple times with different find/replace pairs, or use regular expressions with alternation patterns like '(term1|term2|term3)'.

Find and Replace

Search and replace text with advanced options including regex support, case sensitivity, and whole word matching for text editing and content management. Perfect for content editing and text processing.

find

replace

Share this tool:

Quick Presets

Common replacement scenarios for quick testing

Input Text

Paste text and define what to find and replace.

Text Input

Find

Replace With

Case sensitive

Whole word

Use regex

How it works: The tool applies your find pattern to the input text and replaces matches based on case, whole-word, and regex options.

Continue Your Text Journey

More tools you might find useful

Text to Speech Converter

Transform written text into spoken audio

Text Diff Checker

Spot differences between two text versions

Text Reverser

Flip text characters, words, or lines backward

Text Case Converter

Change text case to upper, lower, title formats

🌈 Browse More Tools

All Text Tools All Tools

Complete Guide: Find and Replace

Everything you need to know about using Find and Replace effectively

Related Tools

More tools you might find useful

Reading Level Checker

Check reading level using readability formulas

Remove or replace line breaks in text

line-breaks

format

text-clean

Letter to Number Converter

Convert letters to numbers (A=1, B=2...)

letter-to-number

a1z26

encoding

Number to Letter Converter

Convert numbers to letters (1=A, 2=B...)

number-to-letter

a1z26

decoding

Reading Time Calculator

Estimate reading time and analyze text metrics

reading-time

word-count

analysis

Fun Dummy Text Generator

Generate funny placeholder text with themed content

dummy-text

placeholder

fun

Sort Lines Alphabetically

Organize lines in alphabetical order

Remove emojis for clean, professional text

emoji

cleaning

professional

Related Collections

Collections that include this tool - discover more tools in these curated collections

Text Manipulation Tools

Manipulate text efficiently. Convert case, find and replace, remove duplicates, sort lines, clean extra spaces, reverse text, split content, and remove punctuation or emojis.

View collection

Text Formatting & Cleanup Tools

Professional text formatting and cleanup tools for writers, developers, and content creators. Remove duplicates, extra spaces, find and replace, sort lines alphabetically, and clean up messy text quickly.

View collection