Base64 Encoder & Decoder
Encode text to Base64 or decode it back — instantly in your browser.
- No upload
- Browser-based
- Free
- No signup
- Converter
Client-side converters keep your files on your device.
Frequently asked questions
- Is my text sent to a server?
- No. Encoding and decoding happen entirely in your browser. Your text never leaves your device.
- Does it support emoji and non-English text?
- Yes. The tool encodes text as UTF-8 first, so emoji, Turkish, Arabic, Chinese and other characters are handled correctly.
- Why do I get an 'invalid Base64' message?
- That means the text you tried to decode is not valid Base64. Make sure you pasted the encoded string, not the original text.