Color a String
Paint each character or word of a string in cycling rainbow colors. 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 Color a String
- 1. Paste the string to color. Enter the text you want painted with cycling rainbow colors into the input pane. Any length works, from a single word to a full sentence.
- 2. Choose Character or Word. Pick Character to cycle the rainbow color one step per letter for a dense, glitter-like effect, or Word to cycle it once per word for a bolder, blockier look.
- 3. Review the colored text. The output panel renders the string with each character or word in its assigned color so you can see the finished rainbow effect immediately.
When to use Color a String
Color a String paints each character or word of a string in cycling rainbow colors for a bold, decorative visual effect. It is a display tool aimed at anywhere plain text needs a colorful lift.
- Designing a playful Discord or forum message. You want a Discord announcement or forum signature to stand out with rainbow-colored text, previewed here before copying the visual result into a message that supports rich formatting.
- Mocking up a kids' app or game title. A children's app or party invitation needs a fun, colorful title; rendering the text in rainbow colors word by word gives a quick preview of that playful style.
- Highlighting a header for a slide or poster. A presentation title or poster headline calls for eye-catching color; cycling colors per word keeps individual words legible while still looking vibrant.
- Prototyping a colorful logo treatment. You are exploring how a brand name would look with each letter in a different color before deciding whether to commit to that treatment in a real design tool.
Examples
Rainbow text
Input
hello
About the Color a String tool
Color a String runs as plain JavaScript in your browser tab, with no server behind it. Paint each character or word of a string in cycling rainbow colors. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's String Tools section, 159 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 Color by 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
Does Color a String cost anything?
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?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
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?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
Can I save what the tool produces?
Yes. Use the download or copy controls in the output panel to keep the rendered result once it looks the way you want.