B64
Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 to text.
Results will appear here
💡 How to Use
Switch to the 'Encode' tab, type or paste any text, and the Base64 output appears instantly. Switch to the 'Decode' tab to reverse the process and recover the original string. Full UTF-8 support ensures Korean, Japanese, emoji, and other multi-byte characters are handled correctly. Common use cases include generating image data URIs, inspecting API authentication tokens, and encoding email attachments.
Related Tools
FAQ
Is Base64 encoding the same as encryption?▼
No. Base64 is just an encoding method that converts data to text. It has no security. Anyone can decode it, so never use it for passwords or sensitive data.
Where is Base64 used?▼
It's widely used in email attachments (MIME), HTML/CSS data URIs (inline images), JWT tokens, and API authentication headers.
Can I encode Korean text with Base64?▼
Yes. This tool supports UTF-8 encoding, so it can accurately encode and decode Korean, Japanese, Chinese, and other multilingual text.