Base64 Encode/Decode

Encode and decode text to and from Base64.

Runs entirely in your browser

How it works

Encode or decode Base64 in seconds.

1

Paste your text

Enter plain text or a Base64-encoded string.

2

Encode or decode

Click Encode to convert to Base64, or Decode to convert back.

3

Copy the result

Copy the output to your clipboard with one click.

Why use KepTools Base64?

Instant conversion

Encode or decode instantly with no server round-trips.

100% private

Your data never leaves your browser. All processing happens locally.

UTF-8 support

Full Unicode support for encoding any text.

No account needed

Just open the page and start converting. No sign-ups or logins.