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Find and replace

Text utilities

Find and replace text patterns quickly with optional regex mode.

Updated

Find and replace

Find and replace text patterns quickly with optional regex mode.

Input format: Line 1=find text, Line 2=replace text, remaining lines=content

Output

Quick start

How to use find-replace

Enter input and view computed output.

  1. Step 1
    Enter input

    Paste or type your data in the input box.

  2. Step 2
    Compute

    The tool processes input instantly in your browser.

  3. Step 3
    Use output

    Copy output and continue your workflow.

In-depth guide

Find and replace guide

Find and replace text patterns quickly with optional regex mode. This tool is designed for fast local processing and practical day-to-day use.

Quick start

Paste input, review output instantly, then copy it for your workflow.

Input tips

Use one value per line for structured inputs. Common separators are handled gracefully.

Privacy

Processing runs in your browser tab for the MVP workflow, with no mandatory upload step.

When to use it vs alternatives

Use this tool for quick text transformation, inspection, decoding, testing, or generation without opening a heavier application. Use a project script or test suite when the same transformation must be repeated automatically.

Common pitfalls

  • Check whitespace, casing, escaping, and line endings before using the result in production.
  • Generated or transformed strings can be syntactically valid while still being semantically wrong for your system.
  • Avoid pasting secrets unless you are comfortable handling them in the current browser session.

Frequently asked questions

Does it support regular expressions?

Yes. Enable regex mode to match patterns, and use capture groups like $1 in the replacement to reuse matched text.

Is the search case-sensitive?

You can toggle case sensitivity. With it off, Cat matches cat and CAT as well.

How do I replace across multiple lines?

Paste the full text and the tool replaces every match. For regex spanning lines, use the appropriate flags and anchors.

What happens to special characters in plain mode?

In plain text mode characters like . and * are treated literally. Switch to regex mode only when you want them to act as pattern operators.

Can I preview before replacing?

Yes. The output panel shows the result so you can confirm matches before copying.

Is anything uploaded?

No. Find and replace runs entirely in your browser.

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