Encode or decode Base64 strings instantly — no data leaves your browser
Utilities, dashboards, generators, and components. Zero dependencies.
Get the Bundle — $49Base64 is a binary-to-text encoding scheme that represents binary data using 64 ASCII characters. It's used to embed binary data in text-based formats like JSON, XML, HTML data URIs, email attachments, and URL parameters. The encoding increases data size by ~33% but ensures safe transmission through text-only channels.
Data URIs for embedding images in CSS/HTML, JWT token payloads, email attachments (MIME encoding), API request/response bodies, and storing binary data in JSON or XML. This tool processes everything locally in your browser — no data is sent to any server.