Base64 Kit

Encode and decode Base64 for text and files. UTF-8 safe, URL-safe variant, data URIs, and the file type detected from its bytes. Nothing leaves your browser.

Text

URL-safe (-_, no padding) Wrap at 76

Plain text (UTF-8)

0 bytes

Base64

Waiting

File → Base64

Drop a file or click to choose Any type, up to 50 MB. Read locally.

Base64 → File

Base64 or data URI

Paste Base64 to detect the file type

File name