Base64 Encode Online

Base64 encoding is a method of converting binary data into ASCII text format using a set of 64 characters: uppercase letters (A-Z), lowercase letters (a-z), digits (0-9), plus (+), and forward slash (/). It is commonly used to transmit binary data over text-based protocols such as email or HTTP, ensuring the data remains intact during transfer without corruption.

No, Base64 encoding is not encryption and should not be used for security purposes. It is simply an encoding scheme that converts data into a different representation. Base64-encoded data can be easily reversed (decoded) by anyone, as the process is entirely deterministic and uses no secret key. If you need to protect sensitive data, use proper encryption methods such as AES or RSA instead.

Yes, you can encode text files using this tool. Simply drag and drop a file onto the input area, or click the Browse button to select a file from your device. The file content will be read and encoded to Base64 automatically. Since all processing happens in your browser, your files are never uploaded to any server.