Base64 Encoder and Decoder
Encode text to Base64 or decode Base64 strings to UTF-8 text with URL-safe mode and byte statistics.
About Base64 Encoder and Decoder
Base64 encoding is fundamental for transmitting binary or formatted text through channels designed for textual data, including HTTP headers, basic authentication tokens, and inline data URIs. This tool provides instant two-way encoding and decoding with complete UTF-8 international character support.
How to Use This Tool
- Select either 'Encode' or 'Decode' mode.
- Input your raw string or Base64 payload into the text area.
- Toggle 'URL-Safe' mode if your string will be passed as a query parameter or inside a web token.
- View the output, character counts, and byte size metrics in real time.
Practical Examples & Use Cases
Basic Auth Header Encoding
admin:SuperSecretP@ss123
YWRtaW46U3VwZXJTZWNyZXRQQHNzMTIz
Standard Base64 string suitable for 'Authorization: Basic <string>' headers.
Frequently Asked Questions
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