Overview
Introduction
Stripping a shared symbol off every word that has one, a '#' from hashtags, a bullet marker from a token list, is a repetitive edit that's easy to get wrong across many words by hand.
It runs entirely client-side, so nothing you paste is ever uploaded to a server.
What Is Word Prefix Remover?
A word-based prefix-removal tool that checks each word of the input independently and strips your chosen prefix from any word that actually begins with it, leaving other words untouched.
It runs entirely client-side as part of this site's String Tools collection, so nothing you paste is ever uploaded to a server.
How Word Prefix Remover Works
The tool splits the input on runs of whitespace using a capturing regular expression, and for each non-whitespace piece checks `part.startsWith(prefix)`; matching words get the prefix sliced off, other words pass through unchanged, then everything is rejoined.
The transformation happens synchronously in JavaScript the moment you type, with no network round trip involved.
When To Use Word Prefix Remover
Use it to strip '#' from a list of hashtags, remove a bullet or tag marker from every matching word, or clean up a shared symbol from selected tokens in a sentence.
It's a fast way to get the answer without opening a code editor, a REPL, or writing a one-off script just to check.
Often used alongside Word Suffix Remover, Text Prefix Remover and Word Prefix Adder.
Features
Advantages
- Safe by design: only words that actually start with the prefix are modified, leaving the rest untouched.
- Preserves the exact original whitespace between words.
- Removes precisely the prefix's length from each word, so characters matching the prefix later in that word are never touched.
Limitations
- The match is case-sensitive and exact, so a differently-cased prefix won't be detected.
- Only strips from the start of a word, not from the middle or end.
Examples
Best Practices & Notes
Best Practices
- If only some words carry the prefix, that's expected; the tool leaves non-matching words untouched instead of erroring.
- Include the complete marker in the prefix, so no fragment of it is left attached to the word.
- Compare the word count before and after; it should be identical, since words are only ever shortened and never dropped.
Developer Notes
The implementation uses `input.split(/(\s+)/)`, then for each non-whitespace part checks `prefix.length > 0 && part.startsWith(prefix)` before slicing, preserving whitespace pieces as separate entries before rejoining with `join("")`.
Word Prefix Remover Use Cases
- Stripping '#' from a list of hashtags
- Removing a bullet or tag marker from selected words
- Cleaning a shared symbol off tokens exported from another tool
Common Mistakes
- Assuming every word will be modified, when words that don't start with the prefix are simply left as-is.
- Specifying a prefix whose case differs from the text's, so the startsWith check fails and nothing at all is removed.
Tips
- Use Word Prefix Adder first to preview what a prefix would look like before removing it elsewhere.
- Because a non-match is a silent no-op, it is safe to run across a mixed list where only some of the words carry the prefix.