Convert ASCII to Unicode
Show the U+XXXX code point of every character. 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 ASCII to Unicode
- 1. Paste your text. Enter the string to inspect in the input pane. Every character is shown as its Unicode code point in U+XXXX notation, so Hi becomes U+0048 U+0069.
- 2. Choose a separator. The Separator option sets what stands between code points. Spaces mirror how the Unicode standard prints sequences; newlines give one code point per line for careful character-by-character review.
- 3. Read the U+ notation. Each value is the character's position in the Unicode space, written in hex with at least four digits. ASCII characters occupy U+0000 through U+007F, so anything higher flags a non-ASCII intruder.
- 4. Copy the code point list. Copy the notation into a bug report, spec reference or escape sequence. U+XXXX is the form Unicode documentation uses, so readers can look up each character directly.
When to use Convert ASCII to Unicode
Convert ASCII to Unicode displays the formal U+XXXX code point of every character in your text. This notation is the lingua franca of encoding discussions: bug trackers, the Unicode charts and language specs all use it. Converting a suspect string to code points is step one of any serious character investigation.
- Identifying invisible or lookalike characters. A string passes visual inspection but fails a comparison. Code point output exposes a U+00A0 non-breaking space or U+200B zero-width space that no amount of squinting would reveal.
- Filing precise encoding bug reports. Instead of writing that a weird dash breaks the parser, report that U+2013 does. Attaching exact code points from this tool makes the bug reproducible on the first try.
- Referencing characters in specifications. A style guide or protocol document must name characters unambiguously. Converting your examples to U+ notation matches how standards bodies cite them.
- Building escape sequences from real text. JavaScript and Python accept \u escapes built from code points. Read the U+ values here and transcribe them into the escape syntax your language expects.
Examples
Encode
Input
Hi
Output
U+0048 U+0069
About the Convert ASCII to Unicode tool
Convert ASCII to Unicode is a free online tool that works entirely inside your web browser. Show the U+XXXX code point of every character. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 81 ASCII utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
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.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Does Convert ASCII to Unicode 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.