Decode any Base64 string back to its original file format. 100% private in-browser.
Privacy note: decoding happens entirely in your browser. Your data is never uploaded.
Decode Base64 strings into original downloadable files instantly with our free browser-based Base64 to File Decoder. Convert Base64 back to text files, images, PDFs, Excel sheets, Word documents, ZIP archives, and many other file formats without uploads. Everything is processed locally in your browser for complete privacy. Base64 is a text encoding method that represents binary file data as ASCII characters. It is commonly used in APIs, JSON payloads, Data URIs, email attachments, and database storage. While Base64 is great for transfer and embedding, you often need to reverse the process and recover the original file. This tool handles that process quickly and safely. Paste either a raw Base64 string or a full Data URI (for example, data:application/pdf;base64,...). If the input includes MIME metadata, the decoder detects it automatically. You can also set a custom MIME type and filename to ensure the downloaded file opens correctly in your target application. SnapBit's Base64 to File decoder runs 100% in-browser. No server-side decoding, no file retention, and no account required. Whether you are debugging API responses, extracting embedded files from data URIs, restoring archived Base64 content, or converting encoded payloads for business workflows, this tool provides fast, secure, and reliable decoding for all major file types.
Yes. You can decode Base64 for text files, images, PDFs, Office documents, ZIP files, and most other binary formats. If your input includes a Data URI (data:mime/type;base64,...), the tool will auto-detect the MIME type.
No. Everything runs in your browser only. Your Base64 input is decoded locally and never uploaded to any server.
Yes. Paste either raw Base64 or full Data URI strings. Raw Base64 works with optional manual MIME type input.
Most often this means MIME type or file extension is mismatched. Try setting the correct MIME type (for example image/png, application/pdf, text/plain) and decode again.
Your data never leaves your browser. All processing is done locally on your machine, ensuring maximum security and speed. No server calls, no tracking, no risk.
Crafted with care by sidme