Base64 Decode
Decode Base64 text back to a file. Free, no signup required.
Drag & drop your file here or click to browse.
Accepted: TXT (Base64 content) — Max size: 10MB
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How to Base64 Decode
Upload a text file containing Base64 encoded data and click Decode. The Base64 string is converted back to its original binary format. The decoded file is downloaded automatically. This is the reverse of Base64 encoding.
When to Decode Base64
You might receive Base64 encoded data from an API response, email attachment, or embedded in a web page. Decoding converts it back to the original file format — whether that's an image, document, or any other binary data.
Frequently Asked Questions
If the input contains invalid Base64 characters or is malformed, you'll receive an error message. Make sure the input is clean Base64 text without extra formatting.