Color Hex Numbers
Add coloring to multiple hex numbers. Runs entirely in your browser, so your data never leaves your device.
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Output
The result appears here as you type.
How to use Color Hex Numbers
- 1. Paste a list of hex numbers. Enter whitespace-separated hexadecimal values such as 'ff a1 ff 2c' into the input pane. Each token is treated as one number rather than as individual digits.
- 2. Watch identical values match colors. The tool assigns a color per distinct value, so every occurrence of ff is painted the same way. Duplicates, alternating sequences and rare values stand out immediately in the rendering.
- 3. Scan the colored result. Read the highlighted list in the output panel and note where colors cluster or repeat. That visual grouping is the answer; nothing needs to be copied back out.
When to use Color Hex Numbers
Color Hex Numbers highlights whole hex tokens instead of single digits, which makes it the right lens when your data is a sequence of values, not a byte stream. Give it a list of readings, opcodes or IDs and repeated values jump out as matching colors.
- Spotting repeated opcodes in a trace. An instruction trace exported as hex words is hard to skim. Colorized, the tight loops show up as rhythmic color bands and the rare syscall opcode breaks the pattern visibly.
- Auditing duplicate identifiers. You exported device IDs from an inventory system in hex. Coloring the list makes accidental duplicates impossible to miss, even across hundreds of entries where sorting would lose the original order.
- Reviewing sensor value stability. A logger prints one hex reading per sample. If the colored view alternates between just two values, you are looking at quantization flicker rather than real signal movement.
- Presenting protocol fields in a talk. For a slide about a message format, color the field values of several example packets. The audience sees which positions vary between messages without reading a single digit.
Examples
Color numbers
Input
ff a1 ff 2c
About the Color Hex Numbers tool
Color Hex Numbers runs as plain JavaScript in your browser tab, with no server behind it. Add coloring to multiple hex numbers. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Hex Tools section, 108 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
There is nothing to configure. Provide the input and the result appears on its own. 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 Color Hex Numbers 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.
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.