Free Image to Base64 Encoder Online
Convert any image to Base64 string instantly. Get Data URI or raw Base64 output for embedding images in HTML, CSS, or code.
Drag & drop an image, or click to upload
JPG, PNG, WebP, GIF, BMP, SVG · Single file
No files are uploaded to any server. All processing happens locally in your browser.
Frequently Asked Questions
What is Base64 image encoding?
Base64 is a text encoding that represents binary data using ASCII characters. It allows you to embed images directly in HTML, CSS, or JavaScript without separate image files, reducing HTTP requests.
What is the difference between Data URI and Raw Base64?
A Data URI includes the full prefix (e.g., data:image/png;base64,...) and can be used directly in HTML src attributes and CSS url() values. Raw Base64 is just the encoded data without the prefix, useful for APIs and backend processing.
Does Base64 increase file size?
Yes, Base64 encoding increases the data size by approximately 33%. It is best suited for small images like icons and thumbnails. For larger images, traditional file hosting is more efficient.
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