Base64 Decoder
Decode Base64, Base64URL, MIME Base64, or data URLs to bytes directly in the browser.
No upload
Decoder settings
Decoding profile
Text preview encoding
File name
Input
Private by design: your data never leaves your device. Base64 is not encryption.
Output
Paste Base64 or choose a file to see the preview.
Paste Base64 or choose a file to see the preview.