Base64 is a binary-to-text encoding scheme that converts binary data into a string of ASCII characters using 64 printable characters (A-Z, a-z, 0-9, +, /). It is commonly used to encode data for transmission over text-based systems like email, JSON and HTML.

Base64 is used to safely transmit binary data (like images, files, or binary strings) through systems that only support text. Common uses include embedding images in HTML/CSS as data URLs, encoding email attachments, storing binary data in JSON, and basic data obfuscation.

Can I encode images to Base64?

Yes! You can upload any image (JPG, PNG, GIF, WEBP, SVG) and convert it to a Base64 data URL. This is useful for embedding images directly in HTML, CSS or JSON without external file references.

What is URL-safe Base64?

URL-safe Base64 replaces the standard '+' and '/' characters with '-' and '_' to make the encoded string safe for use in URLs and filenames without percent-encoding. Our tool supports both standard and URL-safe Base64 encoding.

Is my data sent to any server?

No! All Base64 encoding and decoding runs 100% in your browser using JavaScript. Your data never leaves your device — completely secure and private.

Base64 Encoder Decoder - Encode & Decode Base64 Online Free

Q: Is Base64 encryption?

No! Base64 is NOT encryption. It is just an encoding scheme. Base64 encoded data can be easily decoded by anyone. Do not use Base64 to secure sensitive data. For secure encryption use AES or other proper encryption algorithms.

How It Works

Enter Text

Type or paste text or Base64.

Convert

Click encode or decode.

Copy

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FAQ

What is Base64?

Base64 is an encoding scheme that converts binary data into ASCII text using 64 characters (A-Z, a-z, 0-9, +, /). It's commonly used for email attachments, data URLs, and API data transfer.

Is Base64 encryption?

No! Base64 is encoding, not encryption. Anyone can decode Base64 data. It's meant for data transport, not security.

Is my data stored?

No! All encoding/decoding happens in your browser. Nothing is sent to any server.

Base64 Encoder / Decoder

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