Base64 Encoder / Decoder

Encode and decode text to and from Base64 with full Unicode support. UTF-8 strings are converted safely without data loss.

Base64 Converter

Operation

Input

How It Works

Encoding converts the input to UTF-8 bytes and then to a Base64 string. Decoding reverses the process, turning Base64 back into readable Unicode text.

This approach handles emoji, accented letters, and any other Unicode characters that plain btoa/atob would corrupt.

All conversion happens locally. Your data is never uploaded.

Frequently Asked Questions (FAQ)

Yes! Every string, payload, regex, or file is processed strictly inside your local browser tab using HTML5 and Web Crypto APIs.

Yes. Once loaded, all computations run entirely client-side without relying on external API requests.

Because processing happens on your machine, limits depend only on your system's available memory.

Disclaimer Notice

Technical Disclaimer: This Base64 Encoder / Decoder processes source code and data strictly client-side. Always back up critical code before performing minification, formatting, or encoding operations.

Base64 Encoder / Decoder

Base64 Converter

Output

Disclaimer Notice