Convert UTF8 to Hexadecimal
Quickly convert UTF8 characters to hex numbers. 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 Convert UTF8 to Hexadecimal
- 1. Paste the UTF-8 text. Type or paste the text you want converted, such as the single letter A, into the input pane.
- 2. Choose a Separator. Enter the character placed between each hex byte, such as a space to match a typical hex dump, or leave it blank to produce one continuous hex string.
- 3. Copy the hex output. The output pane shows each byte of your text as a two-digit hex value. Copy it into a color code field, a hash comparison or a low-level debugging note.
When to use Convert UTF8 to Hexadecimal
Convert UTF8 to Hexadecimal shows the raw hex byte values behind any string, which is the most common way to inspect text at the byte level in a hex editor, a debugger or a network trace. It handles multi-byte characters the same as plain ASCII, one byte at a time.
- Cross-checking a hex editor's view of a string. You saved a file with a hex editor and want to confirm the exact byte values it wrote for a piece of text before comparing two versions of the file.
- Constructing a byte pattern for a firewall or IDS rule. You are writing a signature that matches a specific text string at the byte level and need the precise hex sequence to include in the rule definition.
- Documenting a binary file format's text fields. You are reverse-engineering a proprietary file format and need to show colleagues the exact hex bytes a known text label occupies within the file.
Examples
Convert
Input
A
Output
41
About the Convert UTF8 to Hexadecimal tool
Convert UTF8 to Hexadecimal runs as plain JavaScript in your browser tab, with no server behind it. Quickly convert UTF8 characters to hex numbers. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's UTF-8 Tools section, 69 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 Separator 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 Convert UTF8 to Hexadecimal 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.
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.