Text Replace Tool: Bulk Find and Replace with Regex
Find and replace text online in bulk, with case sensitivity and regular expressions including $1 capture-group references. All processing stays in your browser.
Replacing dozens of placeholders, normalizing date formats, or scrubbing sensitive fields in logs: doing this line by line is slow and easy to miss. A bulk find-and-replace tool with regex support handles it in one pass. This guide covers the capabilities and a copy-ready example.
What the Text Replace Tool Does
- Replaces all matches in bulk by default
- Optional case sensitivity
- Regular expression support, e.g.
\d+and\s+ - Capture-group references such as
$1in the replacement - Text is processed only in the browser
Replace Text in Three Steps
- Open the text replace tool, paste your text
- Enter the "Find" and "Replace with" values, tick "Case sensitive" or "Use regex" as needed
- Click "Replace all" and copy the result
A Regex Replacement Example
Normalize 2026-08-06 to 2026/08/06 (regex reference: MDN Regular expressions):
Find: (\d{4})-(\d{2})-(\d{2})
Replace with: $1/$2/$3
With "Use regex" enabled, the find value is parsed as a pattern, and $1/$2 reference the first and second capture groups.
Typical Bulk Replacement Scenarios
- Placeholder substitution: swap template tokens like
{{name}}and{{date}}for real values - Format normalization: rewrite dates, quotes, or line breaks consistently
- Log redaction: replace emails and phone numbers with
***
FAQ
How do I use regex?
Tick "Use regex" and the find value is parsed as a pattern; the replacement supports capture-group references.
Does it replace only one occurrence?
No, it replaces every match by default.
Is my data uploaded?
No. Everything is processed locally in the browser.
Summary
Bulk replace is the finishing step of text cleanup: dedup removes repeats, sorting sets the order, and replacement normalizes the format. The full trio is covered in the text dedup guide and the text sort guide, with the text dedup tool and the text sort tool as entry points.