Find and Replace Tool
Find and replace text with support for regex, case-sensitive matching, and whole-word replacement.
What is Find and Replace Tool?
Find and replace is one of the most fundamental text manipulation operations, but the browser-based version of this tool offers significant advantages over pressing Ctrl+H in a text editor: it works on any text regardless of where it came from (pasted from anywhere), it supports regular expressions for pattern-based replacement, it shows a preview of all changes before applying them, and it can perform multiple find-replace operations in sequence in a single pass. Common use cases include replacing brand names across a document, correcting a repeated misspelling, reformatting dates or phone numbers from one pattern to another, cleaning up exported data, and performing structured text transformations that would take many manual edits to accomplish individually.
How to Use Find and Replace Tool
- 1
Paste Your Text
Paste the text you want to modify into the input area. The original text is preserved until you apply changes.
- 2
Enter Find and Replace Terms
Type the text to find and what to replace it with. Toggle case sensitivity, whole-word matching, and regex mode. Add multiple find-replace pairs for batch operations.
- 3
Preview and Apply
See all matches highlighted in the text before applying. Review the count of replacements, then apply and copy the modified text.
Use Cases
Document Template Personalisation
Replace template placeholders ([Client Name], [Company], [Date]) with actual values across a document. Add all substitutions as a batch find-replace list and apply them simultaneously — turning a template into a personalised document in one operation.
Data Format Conversion
Convert date formats (01/15/2024 → 2024-01-15), phone number formats ((555) 123-4567 → +1-555-123-4567), or any structured text pattern using regex find-replace. The regex capture group replacement (using $1, $2 for matched groups) handles complex reformatting that would require manual editing of each instance.
Bulk Text Correction
Fix a consistently misspelled term throughout a long document, update a changed brand name or product name, or replace all instances of an outdated URL — without opening a separate text editor or doing individual Ctrl+H operations.
Features
Regex Support
Full regular expression support for pattern-based find and replace — match any pattern (phone numbers, dates, email formats) and use capture groups in replacement strings.
Case-Sensitive and Whole-Word Options
Toggle case sensitivity to match "Apple" but not "apple", and whole-word matching to replace "is" without affecting "this" or "island".
Multi-Pair Batch Replacement
Add multiple find-replace pairs and apply them all in a single pass — useful for correcting multiple misspellings or reformatting many different patterns simultaneously.
Change Preview with Highlighting
Before applying, see all matches highlighted in the text with a count of replacements — verify the replacements are correct before committing.
Frequently Asked Questions
Regular expressions (regex) are patterns that describe sets of strings. Instead of finding a specific literal string, regex finds any string matching a pattern. Examples: \d{4}-\d{2}-\d{2} matches any date in YYYY-MM-DD format; [A-Z][a-z]+ matches any capitalised word; \b\w+ing\b matches any word ending in "ing". Use regex when: you need to find variations of a pattern rather than an exact string, when the text to find follows a structure (phone numbers, emails, dates), or when you need to rearrange captured parts in the replacement (using $1, $2 capture groups).
Whole-word matching adds word boundaries to your search, ensuring the search term only matches when it appears as a complete word — not as part of a larger word. Without whole-word: finding "is" in "This island is visible" matches "is" in "This", "island", "is", and "visible". With whole-word: only the standalone "is" matches. Word boundaries are the positions between a word character (letter/digit/underscore) and a non-word character (space, punctuation) or the start/end of the string.
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