Base64 Encoder
Encode Unicode text as standard Base64.
Your input is processed locally in your browser. It is not saved, logged, or sent with analytics.
0 chars
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Base64
Enter a value to begin.
What this calculator does
Convert UTF-8 text to Base64 locally with copy and download controls.
Inputs and what they mean
- Text
- — text value.
How to use it
- Paste or enter content in the editor.
- Adjust any options for the result you need.
- Copy or download the locally processed output.
Formula
Text is converted to UTF-8 bytes, then encoded using standard Base64.
Worked example
Encode Unicode text
Encode plain text, including Unicode characters, as Base64.
Reading the result
The base64 appears in the output box and can be copied straight out. Nothing you paste leaves your browser.
Limitations and assumptions
Results depend entirely on the figures you enter and are rounded for display. They are for general information and education, not professional advice.