DevConvertor

Base64 Encoder

Convert text to Base64 entirely in your browser. Unicode text is handled correctly by encoding through UTF-8 first, so accented characters and emoji round-trip cleanly.

ReadyEncoding & Decoding ToolsFree · No account required

Related tools

Base64 DecoderDecode Base64 back to text, with invalid-input detection.URL EncoderPercent-encode text for a URL or query parameter.Binary ConverterConvert between binary, octal, decimal, and hexadecimal.HTML EncoderEncode or decode HTML entities — never renders or executes input.

Features

  • Unicode-safe — encodes via UTF-8 bytes, so emoji and accented characters work correctly
  • Copy or download the Base64 output
  • Runs entirely in your browser

How to use

  1. Type or paste text into the input box.
  2. The Base64-encoded result appears automatically on the right.
  3. Copy it or download it as a text file.

Example

Example

"Hello, world!" → SGVsbG8sIHdvcmxkIQ==

FAQ

Is my text sent anywhere?
No. Encoding runs entirely in your browser using the native btoa function on UTF-8 bytes — nothing is uploaded.
Does it handle emoji and accented characters?
Yes. Text is encoded as UTF-8 bytes before Base64 encoding, so multi-byte characters like emoji and accents round-trip correctly through the Base64 Decoder.