Convert Word (.docx) to Base64 Online — Encode & Decode in Seconds
Drop a .doc or .docx file and get the Base64 string instantly — or paste Base64 to download the Word file back. Supports batch uploads, Data URI, raw, and MIME formats. Your files never leave your browser.
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Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that converts binary data (like Word documents) into ASCII text. This allows you to embed files directly in HTML, JSON, or other text-based formats.
Why convert a Word document to Base64?
Common uses include embedding documents in JSON APIs, storing files in databases as text, sending attachments through text-only protocols, or including in data URIs.
Is my file uploaded to a server?
No, all processing happens entirely in your browser using JavaScript. Your document never leaves your device, ensuring complete privacy.
Which Word formats are supported?
Both .doc (Word 97-2003) and .docx (Word 2007+) formats are supported.
Can I decode Base64 back to a Word file?
Yes! Switch to the Decode tab, paste a Base64 string (raw, MIME-wrapped, or Data URL), and download it as a .docx file instantly.
Can I convert multiple files at once?
Yes, the Encode tab supports batch uploads. Select or drag-drop multiple .doc/.docx files and they will all be converted independently.
What is MIME line wrapping?
MIME (RFC 2045) wraps Base64 output at 76 characters per line. This format is required by email protocols and some legacy systems.