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 are processed here, on your device
We do not send your file or text contents to a processing server. No account is needed and there is no daily operation quota. Individual tools have size limits to protect your device’s memory.
A connection is needed to load the site and its resources. Hosting may receive technical visit data. Favorites store only tool identifiers in this browser.
How we handle your data →How to use this tool
- Select an image small enough to embed.
- Generate its Data URL and keep its file-type prefix.
- Copy or download the complete text; it contains the selected file’s bytes.
An example you can verify
Get a Data URL for a prototype or small embedded resource.
Example input
A PNG image.
Expected result
Text beginning with data:image/png;base64, followed by the encoded file.
Base64 increases size and does not encrypt the image. A separate file is usually preferable for large resources.
Settings 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.