Base64 to Text Converter
Decode Base64 encoded strings back to original text format. Perfect for decoding API responses, email attachments, or encoded data.
Base64 Input
FREEDecoded Text Output
RESULTTry Examples
QUICKFrequently Asked Questions
FAQWhat is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in ASCII string format. It's commonly used to transmit data over media designed to handle text.
Why can't I decode certain Base64 strings?
Invalid Base64 strings may contain characters outside the Base64 alphabet, incorrect padding, or line breaks in wrong places. Our tool validates input and shows error messages.
Is there a character limit?
No, you can decode large Base64 strings. The tool processes everything in your browser, so performance depends on your device's capabilities.
Does this tool store my data?
No, all processing happens locally in your browser. We don't send your data to any servers or store it anywhere.
What character encoding is used?
The tool uses UTF-8 encoding by default, which supports all Unicode characters including emojis and international text.
How do I know if my Base64 is valid?
The input validation indicator shows ✓ Valid Base64 for valid input and ✗ Invalid Base64 for invalid input.