Base64 Converter (Encoder / Decoder)

Convert text and payloads to Base64 and vice versa instantly. Features full UTF-8 character support, URL-Safe formatting for web parameters, Hexadecimal conversion, and file-to-Data URI encoding.

Input Text (UTF-8)47 chars
Base64 Result68 chars
Input: 49 B•Output: 68 B•Ratio: 138.8%

How to Use

01

Choose the conversion mode: Text ➔ Base64, Base64 ➔ Text, Hex ⇄ Base64 or File/Image.

02

Type or paste your data into the input field.

03

Enable URL-Safe mode if you intend to use the output in query parameters or links.

04

Copy the converted result instantly with the copy button.

What Is This Tool?

Base64 is an encoding method that transforms binary data into 64 printable ASCII characters (A-Z, a-z, 0-9, + and /).

Why It Matters

Base64 is essential for embedding inline images in CSS/HTML, sending email attachments (MIME), generating authorization headers, and transmitting API keys without encoding issues.

Developer Tip
Base64 encoding increases the raw data size by approximately 33%. For large production files, prefer binary multipart transfers.

Frequently Asked Questions

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