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ToolKu

Replace Text

Find and replace text in bulk, with optional case sensitivity and regex support. Free, instant, no upload.

Replace Text Online — Find & Replace Words in Bulk

Editing dozens of lines one by one wastes minutes you do not have. Paste your source text, tell Replace Text what to find and what to swap it with, turn on regex if you need patterns, and get the entire result in a single click.

How to use

  1. 1
    Paste your source text

    Enter the text you want to process.

  2. 2
    Fill in find and replace

    Set the text to find and its replacement.

  3. 3
    Set extra options

    Enable case sensitivity or regex if your task needs it.

  4. 4
    Click Replace text

    Every match is replaced at once, with a summary of the count.

Frequently asked questions

Can I replace words across many lines at once?

Yes. The entire text is processed in a single click.

What is the difference between plain replace and regex?

Regex lets you match patterns (such as all numbers or email addresses) rather than exact words only.

Can it tell uppercase from lowercase?

Yes, via the case-sensitive option.

Is there a limit on text size?

Large texts are fine, since everything runs locally in your browser.