Base64 Encoder, Decoder & File Converter

Encode, decode, and transform text or files to Base64 strings directly in your browser.

How to Use Base64 Tool

  1. Choose your mode: Text conversion, File to Base64, or Base64 to File.
  2. Input your content or drop a file.
  3. Copy the result or download the reconstructed binary file.

Technical Specifications & How It Works

Base64 encodes binary data into ASCII characters for embedding in HTML, CSS, JSON payloads, and email headers.

Frequently Asked Questions

Are international Unicode characters supported?

Yes. The text encoder handles full multi-byte UTF-8 character sets and emojis without encoding errors.

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