Add a Prefix to Words
Prepend a prefix to every word in text. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Add a Prefix to Words
- 1. Paste the words you want prefixed. Enter a sentence or space-separated list of terms, such as a set of keywords you're about to turn into hashtags for a social post.
- 2. Set the Prefix. Type the exact text to add to the front of every word, such as a hash symbol for hashtags or an at symbol for mentions.
- 3. Review the prefixed words. Check the output pane to confirm every individual word in the text now starts with your chosen prefix, with the rest of the spacing unchanged.
- 4. Copy the prefixed text. Copy the result into your social post, message, or wherever the word-level prefix is needed.
When to use Add a Prefix to Words
Add a Prefix to Words prepends the same text to every individual word in a sentence, rather than to whole lines, which makes it the fast path to turning a list of terms into hashtags or mentions. Use it whenever every word, not every line, needs the same leading marker.
- Turning a keyword list into hashtags. A social post has a plain list of relevant keywords like 'sun sea sand' that need to become hashtags for the caption. Adding a hash prefix to every word does that in one step.
- Creating a list of @mentions from usernames. A space-separated list of usernames needs an at symbol added in front of each one before pasting into a message that supports mentions.
- Building command-line flags from a list of option names. A list of option names needs to become properly formatted double-dash flags for a shell script, and prefixing every word saves retyping each flag by hand.
- Prepending a currency symbol to a row of numbers. A row of plain numbers needs a dollar sign in front of each one before being pasted into a report, and prefixing every word handles the whole row at once.
Examples
Hashtag every word
Input
sun sea sand
Output
#sun #sea #sand
About the Add a Prefix to Words tool
Add a Prefix to Words runs as plain JavaScript in your browser tab, with no server behind it. Prepend a prefix to every word in text. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Text Tools section, 211 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the Prefix setting, and the result refreshes the moment you change it. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is Add a Prefix to Words free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.