Data URI Generator - Online File to Base64 Converter
category.encodingFree online Data URI generator tool supporting file and text to data: protocol URL conversion with both Base64 and URL encoding options.
TL;DR:Free online Data URI generator tool supporting file and text to data: protocol URL conversion with both Base64 and URL encoding methods. Auto-detects MIME type, processed locally in browser with no uploads.
FAQ
Completely free, no registration required. Generate Data URIs directly in your browser — all conversion runs locally with no usage limits.
Supports both text mode and file mode. Text mode lets you enter any text and specify the MIME type; file mode supports drag & drop upload with auto MIME type detection, covering different use cases.
No. All Data URI conversion runs locally in your browser. Neither your files nor text content is sent to any server, ensuring complete data privacy.
Base64 encoding converts binary data to text strings with about 33% size increase, ideal for binary files like images. URL encoding uses percent-encoding with larger size increase but slightly better readability, suitable for short text. This tool supports both methods.