Find and Replace Text Online Free
A free, browser-based tool for finding and replacing text — with full Regex support.
Input Text
Output Text
Output will appear here...
Common Regex Patterns
| Pattern | Matches |
|---|---|
| \d+ | One or more digits |
| [A-Z]+ | Uppercase letters |
| \s+ | Whitespace / tabs |
| \b\w+\b | Whole words |
Why Use This Tool?
Whether you're cleaning up server logs, reformatting CSV data, or editing source code, this tool lets you find and replace text instantly — entirely in your browser. Your content is never transmitted to any server, keeping sensitive data like emails, credentials, or private documents completely private.
100% Private: All processing runs locally in JavaScript. No data ever leaves your browser.
Regex Power: Use full JavaScript regular expressions to match complex patterns — wildcards, groups, lookaheads, and more.
Instant Preview: See the replacement result update in real time as you type.
How to Use It
- 1
Paste or type your text into the Input Text area.
- 2
Type the word, phrase, or regex pattern you want to find in the Find field, then type the replacement in the Replace with field.
- 3
Toggle the options — enable Regex for pattern matching, Case Sensitive to control matching, and Global Match to replace all occurrences. The output updates instantly.
Frequently Asked Questions
What is a Regular Expression (Regex)?
A regular expression is a sequence of characters that defines a search pattern. For example, \d+ matches one or more digits, and [A-Z] matches any uppercase letter. Regex lets you find complex patterns that simple text search cannot.
Is my data sent to a server?
No. This tool is 100% client-side JavaScript. Your text is processed entirely within your browser and is never transmitted to or stored on any server. It is safe to use with sensitive data.
Can I use this for normal find and replace without Regex?
Yes. Simply leave the Use Regex option unchecked. The tool will perform a standard string search and replace, just like the find-and-replace feature in a word processor.
What does Global Match do?
When Global Match is on (the default), every occurrence of your pattern in the text is replaced. When it is off, only the very first match is replaced and the rest are left unchanged.
What does Case Sensitive do?
When Case Sensitive is off (the default), the search ignores letter case — so searching for 'hello' also matches 'Hello' and 'HELLO'. When turned on, the match is exact and 'hello' will only match lowercase 'hello'.
Want a deeper guide? Read our article on using Regex for find & replace.