Base64 to PDF Converter
Paste a Base64 string (or a data URI) and get the PDF back as a downloadable file, decoded entirely in your browser. It checks for the PDF header so you know if the data looks right. Nothing is uploaded.
- 100% free
- Private & safe
- Runs in your browser
Why use Base64 to PDF?
Base64 to PDF works on your documents locally, so you get the result in seconds with no watermarks, no sign-up and no files leaving your device.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- Handles Input: Base64 / data URI; Output: PDF.
- Paste the Base64 or data URI.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use Base64 to PDF
- Paste the Base64 or data URI.
- Click Decode & download PDF.
- The PDF is reconstructed and saved.
- Open it to verify.
Examples
- Recovering a PDF stored as Base64 in a database.
- Turning an API's Base64 field back into a file.
Supported formats & limits
- Input: Base64 / data URI
- Output: PDF
Limitations
- The input must be valid Base64 of an actual PDF.
Frequently asked questions
How do I know it worked?
The tool checks for the %PDF header and warns if it's missing.
Is anything uploaded?
No — decoding happens in your browser.
Can it decode data URIs?
Yes — a leading data:...;base64, prefix is handled automatically.
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