Base64 ToolsNew
Base64 Encoder / Decoder
Base64 ToolsNew
Encode and decode Base64 strings, with standard and URL-safe variants plus output information.
AK
appkiro.comEnter or Upload
Input your text or upload a file
Choose Action
Encode, decode or view information
View Results
See output and extra details
Input (Binary)
101010 111100 110101 ...
Split into 6-bit
101010 111100 110101 ...
Convert to Index
42 60 53 ...
Base64 Characters
q 8 1 ...
100% Private & Secure
All processing happens in your browser. No data is sent to any server.
Encode any UTF-8 text into Base64 — the universal way to send binary or non-ASCII content through text-only channels like email, configuration files, and JSON payloads.
Embedding API tokens, sending small files inline, or staging payloads in copy-pastable form for tickets and chat threads.
“Hello, AppKiro!” → SGVsbG8sIEFwcEtpcm8h
For file payloads, use Image to Base64 or recover an inline asset with Base64 to Image.
Is Base64 encryption?
No. Base64 only transforms representation; the original text is fully recoverable.
Why is the output bigger than the input?
Base64 inflates payload size by roughly 4/3 because three bytes pack into four characters.