Base64 to Binary Converter

Decode Base64 encoded strings into raw 8-bit binary byte sequences, instantly and entirely in your browser.

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Base64 vs Raw Binary

Base64 is a text-safe encoding scheme that represents arbitrary binary data using 64 printable ASCII characters, grouping the original data into 6-bit chunks. It exists so binary data can travel safely through text-only channels like JSON, URLs, and email.

Decoding reverses that process: this tool uses the browser's built-in atob() function to turn the Base64 string back into its original bytes, then displays each byte as an 8-bit binary group — entirely client-side, nothing is sent to a server.

More Binary Tools

Binary Converter → Text to Binary → Binary to Text → ASCII to Binary → Binary to ASCII → Binary Translator → Decimal to Binary → Binary to Decimal → Hexadecimal to Binary → Binary to Hexadecimal → Octal to Binary → Binary to Octal → Unicode to Binary → Base64 to Binary → Binary to Base64 → BCD Converter →