conversionBase64 → Text
Free Base64 Decoder - Instant & Offline
Decode Base64 strings back to text instantly. Secure client-side processing.
Input
Base640 chars
Output
TextYour converted output will appear here
Quick actions:
How to Use Free Base64 Decoder - Instant & Offline
The decoder reverses the Base64 encoding process, converting each group of 4 Base64 characters back to 3 bytes of original data.
🔒 Privacy First: This tool runs entirely in your browser. Your data never leaves your computer.
Common Use Cases
- Decode data URIs from HTML/CSS
- Read encoded API responses
- Extract original data from Base64 strings
- Debug encoded configuration values
Free Base64 Decoder - Instant & Offline FAQ
Paste the Base64 string into the input field and click decode. The original text or data will appear in the output.
Ensure your Base64 string is valid. Common issues include missing padding (= characters) or copied whitespace.
Yes! If the Base64 represents an image, use our Base64 to Image converter to view and download it.
The decoder can handle large strings, limited only by your browser's memory.