Convert Unicode to Base64
Quickly encode Unicode values to base64. 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 Unicode to Base64
- 1. Paste the text you want encoded. Paste the Unicode text you want encoded. The tool reads the UTF-8 bytes behind every character, including accented letters and emoji, before handing them to the base64 encoder.
- 2. See how the bytes map to base64. The text is first converted to its UTF-8 byte sequence, then those bytes are grouped and mapped to the standard base64 alphabet, producing an ASCII-safe string that represents the original characters exactly.
- 3. Copy the base64 string. Copy the base64 string and use it anywhere binary-unsafe transport is involved, such as embedding text in a URL, a JSON field, or an email header that only tolerates plain ASCII.
When to use Convert Unicode to Base64
Convert Unicode to Base64 encodes any text, including non-Latin scripts and emoji, into the ASCII-safe base64 alphabet. It matters whenever a transport layer or storage format cannot safely carry raw UTF-8 bytes and needs a printable stand-in instead.
- Embedding text in a JSON payload. An API expects a field to be base64 rather than raw UTF-8 to avoid escaping issues with quotes or control characters, so you encode the message here before pasting it into the request body.
- Passing a value through a URL. You need to stuff a short piece of Unicode text into a query parameter or fragment where certain bytes would otherwise need percent-encoding, and base64 keeps the value compact and URL-safer.
- Storing a config secret. A configuration file or environment variable holds a short piece of non-ASCII text, and encoding it to base64 avoids encoding bugs when the file is read by a strict parser.
- Constructing a data URI by hand. You are hand-building a data URI for a small text snippet and need the base64 portion, so you encode the string here and paste the result after the base64 marker in the URI.
Examples
ASCII
Input
AB
Output
QUI=
Unicode
Input
café
Output
Y2Fmw6k=
About the Convert Unicode to Base64 tool
Convert Unicode to Base64 does its work locally, right in the browser. Quickly encode Unicode values to base64. 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.
There is nothing to configure. Provide the input and the result appears on its own. 2 worked examples further down the page show exactly what the tool produces for real inputs.
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 Unicode to Base64 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.