Online Text Replace with plain find, regex replace, and capture groups

• Plain text replacement

  Simple find-and-replace that works exactly like a text editor. Type what you want to find and what to replace it with.

• Regular expression replacement

  Use regex patterns for advanced search and replace. Supports capture groups with $1, $2 references in the replacement text.

• Matching options

  Toggle case sensitivity, Replace All behavior, multiline mode for line-based matching, and dot all mode for cross-line matching.

• Regex templates

  Quick-start templates for common patterns: multiple spaces, email addresses, URLs, numbers, HTML tags, and leading or trailing whitespace.

• Instant preview

  The result updates as the input, find value, replacement, or options change, so you can review before copying.

• Copy, swap, and clear

  Copy the result to your clipboard, swap the output back to the input for iterative replacements, or clear everything to start fresh.

1. 1

   Paste or type your text into the input area.

2. 2

   Enter the text or regex pattern you want to find in the Find field.

3. 3

   Enter the replacement text in the Replace field.

4. 4

   Select Plain Text or Regex mode depending on your pattern type.

5. 5

   Adjust the matching options: case sensitivity, Replace All, multiline, and dot all.

6. 6

   Review the output, then copy the result when it looks right.

• Use Plain Text mode when you need a straightforward word or phrase replacement, such as fixing a product name across a document.
• Use Regex mode when you need pattern-based matching, such as replacing all email formats, cleaning up extra whitespace, or reformatting data.
• Enable Case Sensitive when the case of the search term matters, such as replacing proper nouns or code identifiers.
• Disable Replace All when you only want to replace the first occurrence, useful for sequential transformations.
• Enable Multiline when working with line-based formats like code or logs where ^ and $ should match each line boundary.
• Enable Dot All when your regex pattern needs to match content that spans across multiple lines.

Before running a broad replacement, use Text Cleaner when the source text still has rough spacing, blank lines, or invisible characters. If the replacement produces variable names, field names, or headings that need consistent casing, move on to Case Converter ; before publishing or submitting the result, Text Counter helps check character and byte limits. For lists, logs, config entries, and other line-based text, Line Tools is a better next step for dedupe, sorting, numbering, and splitting. When replacements touch JSON keys, copied API snippets, or config payloads, validate the result with JSON Formatter before using it downstream.

• Test your regex with a small sample before applying it to the full text. The real-time preview makes this easy to do.
• Use capture groups ($1, $2) in regex mode to rearrange matched content, such as swapping first and last names in a formatted list.
• Enable Case Sensitive only when you need it. Keeping it disabled catches more variations and reduces missed matches.
• When using regex, check for regex errors shown below the Find field before assuming the output is correct.
• Use the output-as-input action to chain multiple replacements: send the current result back to the input, then apply the next rule.

• Regex mode uses JavaScript regular expressions. Some advanced regex features like lookbehind may not work in all browsers.
• Very large texts combined with complex regex patterns may cause brief rendering pauses while the replacement result is recalculated.
• The case sensitivity and multiline options apply only to regex mode. In plain text mode, replacements use simple string matching.
• Replace All is enabled by default. Disable it if you only want to replace the first match, such as when fixing the first occurrence of a repeated issue.
• All processing happens locally in the browser. Nothing is uploaded to a server.