Encode & Convert

Base64 Encoder

Encode text for transport or decode a Base64 value without sending your data anywhere.

Convert text locally

Runs locally in your browser. Your text is not uploaded, saved, or included in sharing.

Mode

Text input0 characters

Unicode text and whitespace are preserved.

Base64 output

Waiting for input

Your converted value will appear here.

UTF-8 safe. Nothing leaves this browser.

Ready when you are.

Watch: encode and decode Base64

No sound. Each step is captioned on screen and also written out in the guide below.

Encode or decode in three steps

01
Choose a mode
Encode readable text or decode a Base64 value.
02
Add your value
Paste content into the input panel. Unicode is supported.
03
Use the result
Copy or download the converted value locally.

Works with everyday text

Hello, BytesBench!
SGVsbG8sIEJ5dGVCZW5jaCE=

Base64 is an encoding format for moving bytes through text-friendly systems. It is not encryption.

Frequently asked questions

Does Base64 encrypt my text?

No. Base64 changes how bytes are represented; anyone can decode it. Do not use it as a security or privacy measure.

Will Unicode text work?

Yes. BytesBench converts text as UTF-8, so accented characters, symbols, and non-Latin scripts round-trip safely.

Can I paste Base64 with line breaks?

Yes. Whitespace is ignored while decoding, but the decoded value must be valid UTF-8 text.