How to use Base64 Encode/Decode
- Type or paste text into the box.
- Click "Encode" to convert it to Base64, or paste Base64 and click "Decode".
- Copy the result.
Key benefits
- Supports Unicode text, not just ASCII.
- Clear error message for invalid Base64 input.
- Runs locally — no data leaves your browser.
- Useful for debugging APIs, tokens and data URIs.
Privacy
Base64 Encode/Decode runs entirely in your browser using local JavaScript. Your files and text are processed on your own device and are never uploaded to QuickTiny's servers.
Frequently asked questions
Does this support emoji and non-English text?
Yes. Text is UTF-8 encoded before Base64 conversion, so emoji and non-Latin scripts round-trip correctly.
What happens if I decode invalid Base64?
You'll see a clear error message instead of garbled output or a silent failure.
Is Base64 encryption?
No — Base64 is an encoding, not encryption. It's reversible by anyone and shouldn't be used to protect sensitive data.