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Base64 Encoder/Decoder

Encode and decode Base64 strings instantly. Supports standard and URL-safe Base64, file uploads, and auto-detection.

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What Is Base64 Encoding?

Base64 converts binary data into a text-safe ASCII string using 64 printable characters. It is widely used to embed images in HTML, pass binary payloads in JSON APIs, and encode credentials in HTTP headers.

How to Use This Tool

Paste text or upload a file, choose encode or decode, and get the result instantly. The tool auto-detects whether your input is already Base64 and supports both standard and URL-safe alphabets.

Common Use Cases

Developers frequently Base64-encode Kubernetes secrets, data URIs for inline images, and authentication tokens. This tool lets you quickly verify encoded values or prepare data for config files without reaching for the command line.