Trim & Clean
What It Does
Finds a specific substring (or regex pattern) in your text and removes or replaces it.
How to Use
- Paste your text in the input area.
- Enter the substring to find in the “Find” field.
- Optionally enter a replacement in “Replace with” (leave empty to remove).
- Toggle options as needed (case-insensitive, whole word, regex).
- Click “Replace”.
Options Explained
| Option | Description |
|---|---|
| Case insensitive | Match regardless of upper/lowercase |
| Whole word | Only match when the substring appears as a complete word |
| Regex mode | Treat the “Find” field as a regular expression |
Example
Find: foo, Replace: bar, Input: foo is foo → Output: bar is bar
(\w+) and reference them in the replacement with $1.About Find & Replace Text
The Find & Replace Text tool performs powerful search-and-replace operations on your text. It supports plain text matching, case-insensitive search, whole-word matching, and full regular expression patterns with configurable flags. This makes it far more capable than the basic find-and-replace built into most text editors, particularly for bulk operations where you need to transform hundreds or thousands of occurrences in one step.
Bulk text replacement is essential in many professional workflows. Data analysts clean and standardize datasets by replacing inconsistent labels or codes. Developers refactor codebases by renaming variables, updating API endpoints, or migrating configuration values. Content teams perform editorial corrections across large documents. Security professionals use replacement to mask sensitive data such as email addresses, phone numbers, or account identifiers before sharing logs or reports.
Common Use Cases
- Replacing deprecated API endpoints or URLs across documentation
- Masking sensitive data like email addresses or credit card numbers
- Standardizing date formats, phone numbers, or naming conventions
- Removing unwanted HTML tags or markup from pasted content
- Performing regex-based transformations for complex pattern matching
- Cleaning CSV data by replacing delimiters or correcting field values
What Is Find and Replace?
Find and replace is one of the most fundamental text editing operations. It searches for every occurrence of a target string within a larger body of text and replaces it with a specified substitute — or removes it entirely when the replacement is empty. Advanced find-and-replace tools support regular expressions (regex), which allow pattern-based matching using special syntax like character classes ([a-z]), quantifiers (+, *), capture groups ((\w+)), and back-references ($1). Regex mode enables complex transformations that are impossible with plain text matching, such as reformatting dates, extracting substrings, or swapping the order of captured groups.
Frequently Asked Questions
How do I remove text instead of replacing it?
Leave the “Replace with” field empty. Every match will be deleted from the text, effectively removing the target substring.
What does “whole word” matching do?
It only matches the search term when it appears as a standalone word, bounded by spaces, punctuation, or the start/end of the text. For example, searching for “cat” with whole word enabled will not match “category” or “concatenate.”
Can I use capture groups in regex mode?
Yes. Wrap parts of your pattern in parentheses to create capture groups, then reference them in the replacement field as$1, $2, etc. This is useful for rearranging or reformatting matched text.
Is my text sent to a server?
No. All processing happens locally in your browser. Your text is never transmitted or stored.
This tool processes your text entirely in your browser. No data is sent to any server, ensuring complete privacy for sensitive or confidential content.