Base64 Encoder/Decoder
Encode and decode UTF-8 text as standard Base64. Supports Unicode; this is encoding, not encryption.
UTF-8 text ↔ standard Base64 (not Base64URL). Encoding is not encryption.
Encoded or decoded output will appear here.
Understanding Base64 Encoding
Base64 encoding converts binary data (here, UTF-8 text bytes) into a limited ASCII alphabet. This tool uses standard Base64 with +, /, and = padding—not Base64URL. It is not encryption or a security mechanism.
Benefits of Using Base64 Encoding
Using Base64 encoding can help you:
- Safely encode binary data for transmission over text-based protocols
- Embed image data directly into HTML or CSS files
- Encode Unicode text (including emoji) as UTF-8 Base64
How to Use the Base64 Encoder/Decoder
Enter text and click "Encode to Base64", or paste standard Base64 and click "Decode from Base64". Encoded and decoded outputs appear separately. Invalid Base64 or non–UTF-8 decoded bytes show an error in the affected result only.
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