Base64 to PDF

Base64 to PDF decodes a Base64 string back into a valid PDF document directly in your browser. Paste the raw Base64 data or a full data URI and click Decode—the tool validates the input and triggers an immediate file download. This is indispensable when working with APIs that return PDF documents as Base64 payloads (e.g., e-signature services, invoice generators, or report endpoints). Instead of writing a script to decode and save the file, you can verify and extract the PDF in seconds. The conversion is entirely client-side, so sensitive document data never leaves your machine. The tool also estimates the file size before download so you know what to expect.