Base64 Encoder/Decoder

Encode and decode Base64 text with full Unicode support

0 characters
Ready to encode or decode
0 characters

How to Use

  1. 1
    Enter Your Text
    Type or paste the text you want to encode or decode into the input area.
  2. 2
    Choose Mode
    Select "Encode to Base64" to convert text to Base64, or "Decode from Base64" to convert back.
  3. 3
    Process & Copy
    Click the process button and instantly copy the result with one click.
Unicode Support
Full support for emojis and international characters
100% Private
All processing happens in your browser
Instant Results
Process large texts in milliseconds
Easy Copy
One-click copy to clipboard
Tool guide

About Base64 Encoder/Decoder

Use this Base64 encoder and decoder to convert plain text into Base64 strings or decode Base64 back into readable text. It is useful for web development, API debugging, data URI checks, configuration snippets, and quick encoding tests where you want a simple copy-ready result without opening a terminal.

Common uses

  • Encode short text snippets for API examples or test payloads.
  • Decode a Base64 value while debugging a response or config file.
  • Check Unicode text and emoji handling before sharing encoded data.
  • Copy the output directly into documentation, scripts, or local notes.

Privacy note

Encoding and decoding run in your browser. The text you enter is not uploaded to a server.

Frequently asked questions

Can this decode invalid Base64 text?

Invalid Base64 input shows an error instead of producing a misleading result.

Does it support Unicode characters?

Yes. The tool handles Unicode text and emoji through UTF-8 compatible browser APIs.

Is Base64 encryption?

No. Base64 is an encoding format, not encryption. Anyone can decode it if they have the string.