Base64 Encoder/Decoder
Quickly encode plain text to Base64 format or decode Base64 strings back to text.
Formula & Calculation Details
Base64 logic uses native Web APIs: btoa() for Base64 encoding and atob() for decoding (with standard UTF-8 escaping wrappers to prevent character corruption).
Frequently Asked Questions
No, Base64 is an encoding format, not encryption. It is used to transmit binary data over text networks but does not hide any contents.
Yes, 100%. All processing is performed entirely in your browser using local JavaScript. No code or data is uploaded to our servers, ensuring your data remains completely private.
Yes! Since it runs entirely in the client-side browser, you can continue to use all its features without an active internet connection once the page is loaded.
There is no set limit, but processing extremely large inputs (multiple megabytes) depends on your browser's memory and CPU capacity. It is optimized to handle standard development workflows instantly.
Absolutely. The interface is fully responsive and optimized to provide a premium, smooth coding experience on mobile phones, tablets, and desktop computers.