DevToolKit

Find and Replace - Advanced Regex Workbench

Industrial-grade text transformation tool. Supports Regex, sequential batch chains, capture groups, and case preservation.

0 Matches Found
Replacements:0
100% Client-Side

Pattern Controls

Multiple F/R pairs
Global substitution
Aa != aa
Regular expressions
\\bWord\\b
Match target casing
Pro Tip

Use $1, $2 etc. in replacement to use captured regex groups. Supports \\n and \\t.

Transformation Workbench
The quick brown fox jumps over the lazy dog. 
Contact support@example.com or sales@example.org for more information.
Version 1.2.3 was released last week. Version 1.2.4 is coming soon.
RED, GREEN, BLUE are colors. red, green, blue are lowercase.
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How to Use

Perform complex text transformations instantly with our professional workbench:

  1. Input Text: Paste your source data into the Workbench area on the left.
  2. Set Patterns: Enter your search term and replacement. Enable Regex for advanced pattern matching.
  3. Chain Mode: Toggle Chain Mode to apply multiple find and replace operations sequentially in one pass.
  4. Normalization: Use Match Case or Whole Word to refine your search precision.
  5. Iterative Workflow: Click Swap result to input to perform subsequent transformations on your result.

About This Tool

Industrial Text Engineering

The DevToolkit Find and Replace utility is designed for developers and data engineers. Beyond simple string swaps, it supports full JavaScript Regular Expressions, including lookaheads, named capture groups, and backreferences (e.g., using $1 in your replacement to reuse matched segments).

Why Use This Tool

Why use our tool?

Precision and privacy. Most online tools fail at handling multi-line regex or sequential chains. Our engine handles complex data restructuring while running 100% client-side, ensuring that your sensitive logs, code, or documents never leave your browser memory.

FAQ

Does this support regular expressions?
Yes. Toggle regex mode to use full JavaScript regular expression syntax for powerful pattern matching and replacement.
Can I do case-sensitive replacements?
Yes. Toggle case sensitivity on or off depending on your needs.
Is my text sent to a server?
No. All text processing happens locally in your browser.
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