Decode Base64 PDF bytes and download the original document without sending the encoded content to a server.
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Enter valid Base64 data to see the preview
Use the decoder when you need the PDF file represented by an encoded attachment. It distinguishes a PDF signature from supported text and image content. Recovering the original bytes avoids treating the PDF's binary structure as ordinary text.
Remove surrounding JSON quotation marks from an encoded attachment, paste the Base64 value, and inspect the detected content type before downloading.
The input must be complete and valid Base64. Password protection and corruption are preserved in the recovered document; decoding is not password removal or document validation.
Paste the Base64 content and decode it. Review the detected content and preview before exporting. Download the recovered PDF, or generate a PDF from supported decoded text or image content.
The input must be complete and valid Base64. Password protection and corruption are preserved in the recovered document; decoding is not password removal or document validation.
No registration, no tracking of your content, no server uploads. Don't just take our word for it:
Your files and text are processed entirely on your device. Nothing is ever sent to us.
Once loaded, this tool keeps working with your Wi-Fi turned off. Try it.
Open your browser's DevTools → Network tab. You'll see zero requests carrying your data.
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Recover a PDF from Base64 data, or turn supported Base64 text and images into a PDF using local browser processing.
View a Base64-encoded image directly in your browser and inspect it before saving a local copy.
Decode an image stored as Base64 and preview its pixels before downloading the recovered file.