What happens with invalid input?

Malformed input is caught and shown as an error state instead of crashing the page.

Can I download the result?

Yes. Output panels include copy and download actions.

Developer Text

Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to text safely.

What this tool does

Encode text to Base64 or decode Base64 back to text safely.

How to use it

Paste, type, or upload text where the tool supports files, then review the browser-generated output and copy or download the result when available.

Privacy and related tools

Text tools run locally in your browser for private, mobile-first utility workflows without backend storage or accounts.

Browse text tools ->

Encode and decode Base64

Convert text to Base64 or decode Base64 back to readable text with safe invalid-input handling.

Mode

Waiting for text input.

Input characters

Output characters

Status

Needs input/fix

Input0 chars

Output

Copy, download, or use the generated output when ready.

How Base64 encoding works

Text is encoded with UTF-8 bytes before Base64 conversion, and decoding validates the Base64 shape before producing text.