Base64 Output
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Turn text or files into Base64, or turn Base64 back into text. Supports standard and URL-safe Base64. Nothing you paste is saved or shared.
Base64 is a standard way of turning files and special characters into plain, safe text. This encoder and decoder helps you read login tokens, put images into web pages or share complex text without it getting garbled.
When transferring data over protocols designed to deal purely with text (like HTML, CSS, or basic HTTP), binary data can easily become corrupted. Base64 encodes 8-bit bytes into a 6-bit alphabet (A-Z, a-z, 0-9, +, /). URL-Safe Base64 modifies the symbols to avoid breaking URI parsers.
Whether you are reading a login token, checking an email attachment or embedding a small image, the two-way view gives you an instant conversion without any setup.
Base64 is a binary-to-text encoding scheme that represents binary data (like images, files, or arbitrary bytes) using only 64 printable ASCII characters. It's commonly used to embed binary data inside text-based formats like JSON, XML, email (MIME), or HTML — for example, a small image embedded directly in a stylesheet using a data URI.
A standard data URI looks like data:image/png;base64,iVBORw0KGgo... — the MIME type tells the browser how to interpret the following Base64-encoded bytes. There's also a URL-safe variant of Base64 that replaces the '+' and '/' characters (which have special meaning in URLs) with '-' and '_' so encoded data can be safely used inside a URL or filename.
Top questions about the Base64 Encoder / Decoder.
