Convert ASCII to Unicode
Quickly convert ASCII bytes to Unicode symbols. 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 ASCII text. Enter plain ASCII text such as 'Hi' into the input pane. Since ASCII is a subset of Unicode, every character maps directly to a Unicode code point.
- 2. Choose a separator. Set the Separator used between each resulting code point, such as a space or comma, so the U+ notation output is easy to scan or split programmatically.
- 3. Review the code points. Check the output pane for each character rendered as its formal U+XXXX code point notation, confirming the exact Unicode identity behind every ASCII character.
- 4. Copy the U+ notation. Copy the code point list into documentation, a regular expression, or a bug report that needs to reference exact Unicode identities rather than raw characters.
When to use Convert ASCII to Unicode
Convert ASCII to Unicode restates plain ASCII text as formal U+ code point notation, one entry per character. It is a small but useful step whenever you need to talk about text in terms of its Unicode identity instead of its visual form.
- Writing precise bug reports. A rendering bug depends on the exact character involved, and screenshots are ambiguous. Converting the string to U+ notation removes any doubt about which character is at fault.
- Documenting a regex character class. You are writing a regular expression that needs to reference specific code points, and converting your example ASCII text gives you the exact U+ values to cite in comments.
- Teaching how ASCII maps into Unicode. You want a simple demonstration for a course or blog post showing that the first 128 Unicode code points are identical to ASCII, character for character.
- Comparing text across encoding layers. Before debugging a text-processing pipeline, you convert the plain-text input to U+ notation as a baseline to compare against what comes out the other end.
Examples
Encode
Input
Hi
Output
U+0048 U+0069
About the Convert ASCII to Unicode tool
Convert ASCII to Unicode does its work locally, right in the browser. Quickly convert ASCII bytes to Unicode symbols. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Unicode Tools collection on EditSafely, a set of 98 small, focused Unicode utilities that share the same instant, private workspace.
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.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
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.