What is Base64 encoding?

Base64 converts binary data into ASCII text using 64 characters (A-Z, a-z, 0-9, +, /), making it safe for transport in text-based protocols.

Is Base64 encryption?

No. Base64 is an encoding scheme, not encryption. It can be decoded by anyone and provides no security.

When should I use Base64?

For embedding images in HTML/CSS, transmitting binary data in JSON/XML, or encoding email attachments.

Base64 Encoder / Decoder – Free Online Tool

Encode text to Base64 or decode Base64 strings instantly.

✦ FreeNo SignupInstantEncoding Base64 Encoding Explained URL Encoding Guide JSON Web Tokens Explained Image Encoding for the Web

Runs in your browser. Nothing you type or paste is uploaded, saved, or sent to an AI.

Input

Example

Input

Hello, World!

Output

SGVsbG8sIFdvcmxkIQ==

The text is encoded to Base64 format. Decoding reverses the process exactly.

How to Use Base64 Encoder / Decoder

1
Enter Text
Paste the text you want to encode, or paste a Base64 string to decode.
2
Choose Action
Click Encode to convert to Base64, or Decode to convert back to plain text.
3
Copy Result
Copy the result to clipboard.

What is Base64 Encoder / Decoder?

The Base64 Encoder/Decoder handles both encoding and decoding of Base64 strings. It supports UTF-8 text and produces standard Base64 output with padding. All processing happens client-side for privacy.

Common Use Cases

✦Encoding images for inline CSS data URIs
✦Encoding authentication credentials for HTTP Basic Auth
✦Transmitting binary data in JSON API payloads

Frequently Asked Questions

Also available as

Free Base64 Encoder Base64 Decoder Online

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