Free Base64 Encoder and Decoder
Encode or decode Base64 in your browser. Text never leaves this device. 100% client-side processing in your browser. Absolute privacy with zero file uploads — files never leave this device.
Base64 encode and decode converts text to Base64 or back again in this browser.
Base64 is not encryption. Anyone can decode it. Do not use it to hide a password or a key.
Questions
Why did decoding fail?
The input has to be valid Base64. A truncated string or extra characters will not decode.
Does this upload the text?
No. Encoding and decoding stay in this tab.