Swap Words in Text

Find & Replace is one-way and sequential. If you replace 'cat' with 'dog', all cats become dogs. Then replacing 'dog' with 'cat' makes everything cats, including original dogs. Swap Words is bidirectional and simultaneous—it exchanges 'cat'↔'dog' in one pass: every 'cat' becomes 'dog' AND every 'dog' becomes 'cat', preserving the original distribution. Example: 'The cat and dog play' becomes 'The dog and cat play' (perfect swap), not 'The cat and cat play' (broken sequential replace).

Whole Words Only (enabled by default) ensures words are matched at word boundaries—surrounded by spaces, punctuation, or line breaks. Example swapping 'cat'↔'at': With whole words ON, 'The cat is at home' becomes 'The at is cat home' (only standalone 'cat' and 'at' swap). With it OFF, 'The cat is at home' becomes 'The at is cat home' PLUS 'cat' inside 'cattle' would become 'attle' (partial match). Use whole words for clean word-level swaps.

With Preserve Case Pattern enabled (default when Case Sensitive is off), the tool maintains capitalization structure during swaps. Examples swapping 'cat'↔'dog': 'Cat' → 'Dog' (title case preserved), 'CAT' → 'DOG' (all caps preserved), 'cat' → 'dog' (lowercase preserved). This ensures 'The Cat and DOG play' becomes 'The Dog and CAT play' (natural capitals), not 'The dog and cat play' (broken caps). Essential for maintaining proper nouns, sentence starts, and acronyms in text.

Yes! The tool swaps any text strings, not just single words. Examples: swap 'New York'↔'Los Angeles' to update city names, swap 'United States'↔'UK' in documents, swap 'JavaScript'↔'Python' in code comments, or swap 'Mr. Smith'↔'Dr. Jones' in formal letters. Just enter the full phrases in the input boxes. The tool treats them as atomic units and swaps them wherever they appear. Useful for bulk text transformations involving names, titles, terminology, or multi-word expressions.

The statistics panel shows: Swaps (total number of word exchanges performed), Words (total word count in input text), Unique (count of unique words—helps gauge vocabulary diversity), and Characters (total character count including spaces). The swap count is particularly useful: if it's 0, your swap words might not exist in the text; if it's unexpectedly high, you might be matching unintended words (enable 'Whole Words Only' to fix).

Use Case Sensitive when: (1) You need to distinguish between 'Apple' (company) and 'apple' (fruit), (2) Swapping acronyms that might conflict with regular words ('IT'↔'HR' vs 'it'↔'hr'), (3) Programming code where 'String' and 'string' are different, (4) Preserving exact capitalization in formal documents. Leave it OFF (default) for general text where 'Cat', 'CAT', and 'cat' should all be treated as the same word. Case Sensitive overrides Preserve Case Pattern.

With Highlight Changes enabled, the output shows swapped words with yellow highlighting so you can instantly see which words were exchanged and verify the swap worked correctly. Example swapping 'cat'↔'dog' in 'The cat and dog play': the words 'dog' (was cat) and 'cat' (was dog) appear highlighted. Perfect for double-checking swaps, debugging unexpected matches, or analyzing transformation patterns. Disable highlighting for clean text suitable for copying or downloading.

Content Editing: Swap character names in fiction ('Alice'↔'Bob'), update product names in marketing copy, change terminology across documents. Translation Assistance: Swap equivalent terms between languages or dialects ('color'↔'colour', 'center'↔'centre'). Data Cleaning: Fix systematically reversed labels in datasets ('positive'↔'negative'), swap mixed-up categories. Code Refactoring: Update variable/function names ('oldName'↔'newName'). A/B Testing: Swap headlines or CTAs to create variation versions. Privacy: Replace real names with pseudonyms.

Yes! Click the ↻ button (circular arrows) next to 'Swap Settings' to instantly swap the values in 'First Word (A)' and 'Second Word (B)' input fields. Useful when: (1) You entered words in the wrong order, (2) You want to undo a previous swap (swap inputs then apply again), (3) Testing different transformation directions. Example: if you swapped 'cat'→'dog' and want to reverse it, click the button to get 'dog'→'cat', then the output automatically reverses.

100% secure. All word swapping happens entirely in your browser using JavaScript. Your text never leaves your device, isn't uploaded to servers, isn't logged, and isn't stored anywhere. Even file uploads are processed locally with zero network transmission. Verify this by checking your browser's Network tab—no data sent. Essential for processing confidential documents, unpublished manuscripts, business communications, legal texts, or any sensitive content requiring privacy.