Image to Base64
Convert an image to a copyable and downloadable Base64 Data URL.
Maximum 25 MB and 40 megapixels. Each dimension supports up to 16,384 px. Everything is processed in your browser.
Reprocessing can change metadata and color profiles. JPG does not preserve transparency: a white background is used. PNG and WebP support transparency.
Your files and text are processed on your device.
How to use this tool and limits
The Data URL includes the MIME type and original content encoded as Base64. Copy it or download it as text. Base64 is approximately one-third larger than the original bytes.
Frequently asked questions
Does Base64 compress the image?
No. It encodes bytes as text; it is neither compression nor encryption.