Base64 to PDF Converter

Paste a Base64-encoded PDF string (or data:application/pdf;base64 Data URI) and download the decoded PDF document.

Last Updated: August 2026
100% Client-Side — Your data never leaves your device

Paste a Base64 string (with or without a data: prefix) and download it as a file. The MIME type is auto-detected from data URIs.

Why this tool is safe

Your data never leaves your device — everything runs in your browser.

No server uploads. Other tools send your files to their servers. Ours don't.
Zero tracking of content. We never see, store, or log anything you convert.
Works offline. Once loaded, the tool works without an internet connection.
No account required. Instantly use all tools completely free without signing up.

Frequently Asked Questions

Search below or browse through our most commonly asked questions.

Paste your Base64-encoded string into the input box and click Decode and Download. Your browser will instantly generate and download the PDF file.
Yes! You can paste raw Base64 strings or full Data URIs starting with data:application/pdf;base64,.
No. The entire conversion and download happen locally in your web browser. Your confidential PDF documents remain private.

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