Base64 Encode/Decode
DeveloperProcessed Locally — 100% PrivateEncode and decode Base64 text instantly.
How to Use Base64 Encode/Decode Online
Encode and decode text and data into Base64 format instantly. Supports full UTF-8 characters, URL-safe variants, and file conversion.
Input & Prepare
Input your plain text or paste Base64 encoded string.
Configure & Adjust
Toggle between 'Encode' and 'Decode' modes.
Export or Copy
Copy your result with one click.
Common Use Cases
- Encode authentication headers and tokens for API testing
- Decode data URLs, configuration parameters, and email attachments
- Embed small binary icons directly into HTML/CSS
Technical Specifications & Limitations
Base64 increases data size by approximately 33% compared to raw binary.
Frequently Asked Questions
Does this tool handle Unicode / emojis?
Yes, our encoder uses UTF-8 byte streams, ensuring international characters and emojis encode and decode flawlessly.
100% Client-Side Privacy Guarantee
DailyToolbox processes all operations using local WebAssembly and Web APIs inside your browser memory. No data, files, or sensitive inputs are ever uploaded to an external server or saved in tracking cookies.
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