Agent X Alpha

Base64 Encoder/Decoder

Client-SideOffline Ready

Quickly encode text or files to Base64, or decode Base64 back to its original readable format.

Presets:
0 bytes

100% Client-Side Privacy

All encoding, decoding, and file conversions occur purely in your browser memory. No data is ever transmitted to servers.

File & Image Data URI Support

Drag and drop images, SVGs, or documents to generate embeddable CSS/HTML data:image base64 strings with live previews.

Standard & URL-Safe Encoding

Toggle seamlessly between RFC 4648 standard base64 and URL-safe base64 (replacing + with - and / with _ without padding).

Frequently Asked Questions

What is Base64 encoding used for?
Base64 converts binary data into ASCII text format, making it safe to transmit across text-only protocols such as HTTP headers, email (MIME), and JSON payloads.
Is Base64 an encryption method?
No, Base64 is an encoding format, not encryption. It can be reversed by anyone without a key. For confidential information, use our Text Encryptor (AES-256).
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