🔢 Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 strings instantly.
How to Use the Base64 Encoder/Decoder
Follow these steps for best results.
Why Use This Tool?
Base64 appears constantly in web development: HTTP Basic Auth headers, JWT token payloads, data URIs for embedded images, and many API responses encoding binary data. Having an instant converter eliminates the need to write one-off scripts or use language-specific libraries for a simple encoding task.
Frequently Asked Questions — Base64 Encoder/Decoder
Common questions about this tool.
About Base64 Encoder/Decoder
Base64 is an encoding scheme that converts any text or binary data into a string of 64 printable ASCII characters, designed to allow data containing special characters to be safely transmitted over text-based channels such as email, HTTP headers, and JSON. You encounter Base64 most commonly in HTTP Basic Authentication headers (credentials are Base64-encoded), JWT token payloads, data URIs for embedded images, and API responses that encode binary content. Remember: Base64 encodes — it does not encrypt. Anyone with the string can decode it instantly.