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NumanX
✦ New Tool

Base64 Encoder/Decoder

Encode and decode Base64 strings instantly. Supports text input and file upload.

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Why Use Base64 Encoding?

Base64 encoding is essential for embedding binary data (images, files) in text-based formats like HTML, CSS, and JSON. It's also widely used in email attachments (MIME), data URIs, and API payloads where binary data needs to be transmitted as text.

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Frequently Asked Questions

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used for embedding images in HTML/CSS, transmitting data in APIs, and storing binary data in text-based formats like JSON.
No. All encoding and decoding happens entirely in your browser. Your data never leaves your device.
Yes, you can upload a file and the tool will encode its contents to Base64. This is useful for creating data URIs.