File to Base64 Encoder
Upload any file and get its Base64 encoded string or data URL instantly.
Upload any file type — image, PDF, DOCX, ZIP, font, or other — to get its Base64 string and data URL. Everything is processed locally in your browser; nothing is uploaded to any server.
Drop any file here or click to upload
Any file type supported
What is File to Base64 encoding?
Base64 encoding converts binary file data into a plain ASCII text string. This makes it possible to embed any file — images, PDFs, fonts, ZIP archives — directly inside HTML, CSS, JSON, or any text-based format without a separate network request.
Common uses include embedding images in CSS as data URLs, attaching files to JSON API payloads, encoding email attachments in MIME format, and storing small binary assets inside databases or configuration files.
Raw Base64 vs Data URL
The raw Base64 string is just the encoded data with no type information — useful when the receiving system already knows the format or when you need to pass the string inside a JSON field.
A data URL includes the MIME type prefix in the format data:mime/type;base64,... and can be used directly as an image src, CSS background-image, or href value in the browser without any extra steps.
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