Base64 Encoder
Encode and decode Base64 strings — supports Unicode
The result updates automatically as you type.
Processed entirely in your browser — no data is sent to any server
About Base64 Encoder
Encode and decode Base64 strings with full Unicode support. Runs entirely in your browser — your data never leaves your device.
- ·One-click switch between encode and decode
- ·Full Unicode support including CJK characters and emoji
- ·Swap button for quick reverse operations
- ·Runs entirely in your browser — data never leaves your device
Base64 Encoder FAQ
Is Base64 encryption?▼
No. Base64 is an encoding format, not encryption. Anyone can decode it to recover the original text.
Does it handle Unicode and emoji?▼
Yes. The tool uses UTF-8 encoding internally, so Chinese, Japanese, Korean characters, and emoji all work correctly.
Can I encode files?▼
Currently the tool supports text only. File encoding support may be added in the future.