Base64 Encoder & Decoder
Convert text to Base64 encoding and decode Base64 strings securely. All processing happens in your browser.
🔒 100% Privacy Protected
Text to Base64
Base64 to Text
Client-Side Processing
0 characters
How UTF-8 Safe Base64 Encoding & Decoding Works in Browser Memory
Base64 encoding translates binary bytes into a 64-character ASCII alphabet (`A-Z`, `a-z`, `0-9`, `+`, `/`, and `=` padding) so binary assets, authentication headers, and multi-byte Unicode strings can travel safely through text-only channels like HTML Data URLs, JSON fields, and email MIME headers.
Step-by-Step Instructions
- Paste plain text (to Encode) or a Base64 string (to Decode) into the workspace above.
- Click "Encode to Base64" or "Decode from Base64" to transform the payload locally with full UTF-8 Unicode character support.
- Copy the result directly into your CSS data URI, Authorization header, or configuration file.
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