Base64 Decoder
Decode Base64 into readable text or downloadable files instantly. Fast, private and completely browser-based.
Decode Base64
Paste Base64 data or upload a text file.
Base64 Input
Supports raw Base64 and Data URLs
Drop a Base64 text file here
Maximum decoded size: 20 MB
Decoded Output
Your decoded result will appear here
Text Decoding
Convert Base64 back into readable UTF-8 text.
File Decoding
Decode Base64 binary data into a downloadable file.
Data URL Support
Automatically handles standard Base64 Data URLs.
100% Private
Everything is processed locally in your browser.
How Base64 Decoding Works
Base64 represents binary data using a limited set of ASCII characters. Decoding reverses this process and reconstructs the original bytes.
Paste Base64
Enter raw Base64 or a complete Data URL into the input field.
Decode Bytes
The browser converts the Base64 characters back into their original binary bytes.
Get Your Data
Text is displayed directly, while binary data can be downloaded as a file.