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TrenTyx@local:~/text-encoding/base64-tool $ run base64-tool_

100% browser-based Base64 encoder & decoder. Zero server requests, instant local conversion.

input.txt

Drop file here

OUTPUT — BASE64

Paste input on the left and press Encode or Decode to see the result here.

Decoded image preview
Input: 0 B
Output: 0 B

What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that represents binary data as an ASCII string. It's widely used to embed images in HTML/CSS (data: URIs), transmit binary attachments in email (MIME), and safely pass data through text-only channels like JSON payloads or URL query parameters. This tool lets you encode any text or file into Base64 — and decode Base64 strings back to their original form, including automatic image preview — entirely in your browser with zero server contact, keeping your data private.