What is Base64 used for?

Embedding images in HTML/CSS, encoding email attachments, storing binary data in JSON, and authentication tokens.

Is Base64 encryption?

No. Base64 is encoding, not encryption. It does not provide security — anyone can decode it. Use it for data transport, not protection.

Does it support Unicode?

Yes. The tool handles UTF-8 encoded text including international characters and emojis.

Base64 Encoder / Decoder

Encode text to Base64 format or decode it instantly. Fully local and secure.

Input Text

Result

What is Base64 Encoding?

Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format. It is widely used to embed image data in HTML or CSS files, or to transfer data over networks securely without syntax errors.

Free Base64 Encoder & Decoder Online

Base64 encoding converts binary data into a text-safe format using 64 ASCII characters. It is essential for embedding images in CSS/HTML, transmitting binary data through text-only channels like email or JSON, and handling authentication tokens. Our encoder/decoder handles both directions instantly.

The tool supports UTF-8 text encoding, making it compatible with international characters, emojis, and special symbols. All encoding and decoding happens locally in your browser using JavaScript native btoa/atob functions.

How to Use This Tool

Paste your text or Base64 string into the input.
Click "Encode" to convert text to Base64, or "Decode" for the reverse.
Copy the result from the output area.

Frequently Asked Questions

Related Tools You Might Like

URL Encoder

Replace spaces and special characters with their % encoding format equivalents (URL Encode).

Hash Generator

Create MD5, SHA-1, SHA-256, and SHA-512 hashes from text using local encryption algorithms.

Image to Base64

Generate the Data URI (Base64) code of any image completely safely and locally.