Base64 Encode / Decode Tool

Encode text into Base64 or decode Base64 back into readable content directly in your browser. It is useful for inspecting tokens, debugging authorization headers, checking config values, decoding API payloads, and converting plain text without using a remote service. ToolMill runs fully client-side for privacy and continues to work offline after installation.

Encoding

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Examples

Encode text to Base64

Input

Hello, ToolMill!

Output

SGVsbG8sIFRvb2xNaWxsIQ==

Decode Base64 to text

Input

VGhpcyBpcyBhIGJhc2U2NCBkZWNvZGUgdGVzdC4=

Output

This is a base64 decode test.

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Encoding

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Encoding

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Encoding