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

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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