Base64 Encoder / Decoder

Security & Privacy

Two-way encoder and decoder for plain text and UTF-8 strings.

Security & Privacy
100% Client-Side: Runs in browser
Zero Uploads•Free Forever ($0)•No Registration
Plain Text (UTF-8 / Unicode / Emojis):
Base64 Encoded Output:

How to Use Base64 Encoder / Decoder

Follow these simple steps to use this free browser-based tool:

1

Select Mode

Choose between 'Encode to Base64' or 'Decode from Base64'.

2

Input Content

Type or paste your string into the input area.

3

Copy Converted String

Click 'Copy Output' to grab the result.

Key Features & Benefits

Bidirectional conversion (Text to Base64 & Base64 to Text)
Handles full UTF-8 emoji and international Unicode characters safely
Real-time instant live output calculation
One-click copy and quick swap controls

Frequently Asked Questions

Why does standard Base64 sometimes break with emojis?

Older JavaScript `btoa` only supports Latin1 characters. Our tool incorporates proper UTF-8 percent-encoding wrappers to guarantee flawless Unicode and emoji handling.

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