How to Use Base64 Encoder/Decoder
- 1
Choose encode, decode, or file mode.
- 2
Paste text or select a file.
- 3
Generate the Base64 or decoded output.
- 4
Copy or download the result.
Frequently Asked Questions
Does this support emoji and Arabic?
Yes. Text encoding and decoding use UTF-8.
Are files uploaded?
No. File conversion runs locally in your browser.
What happens with invalid Base64?
The tool validates input and shows an error instead of returning corrupt text.
Can I decode data URLs?
Yes. Paste the Base64 portion or the full data URL when supported by your input.