Replace Words in Text

Quickly swap words in your content without touching each one manually. The Replace Words in Text Tool lets you define custom replacements like “dog” to “cat” and applies them instantly. Whether you’re editing a block of text, cleaning up terminology, or transforming phrases for readability, it updates as you type.

Paste your input above or import a file below.
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Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total characters: 0
Options

How to Use:

  1. Paste or type your content into the Input Text box.
  2. (Optional) Use Choose File to load a text-based file like .txt, .csv, .html, etc.
  3. In the Options box, enter word mappings using the format: original:replacement One mapping per line, like: dog:cat ran:walked barked:meowed
  4. The tool replaces matching whole words in real time and shows the updated result in the Replaced Output box.
  5. Use Copy Output to copy the result or Export to File to save it.
  6. Hit Clear All to reset input, output, and mappings.

What Replace Words in Text Tool can do:

It replaces exact whole words (case-insensitive) based on your custom map, so “dog” turns into “cat” but “dogged” stays untouched. Replacements respect capitalization so “Dog” becomes “Cat.” The tool works entirely in the browser, updates live, and handles large inputs quickly. You can load files, apply your mappings, and download the cleaned-up result instantly.

Example:

Input:

The dog ran fast. The dog barked.

Mappings:

dog:cat
ran:walked
barked:meowed

Output:

The cat walked fast. The cat meowed.

Common Use Cases:

Replace specific names, fix outdated terms, apply language translations, or simplify complex writing. Writers, editors, teachers, and developers can all use this for batch substitutions without having to scan through every sentence. It’s simple, flexible, and fast.

Useful Tools & Suggestions:

If you’re cleaning or rewriting content, Replace Letters in Text gives you finer control at the character level ideal for tweaking formatting or phonetics. And for more automation, Replace Words with Digits can simplify phrases into numeric codes, useful for encoding, compression, or creative experiments.

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