Convert a PNG to Base64
Result: Upload a PNG image and see its Base64 data URI output. You can copy the data URI or download it as a text file.
Image to Base64
Convert any image (JPG, PNG, WebP, GIF) to a Base64 data URI string. View the encoded output, copy it, or download it. All processing happens locally — your image never leaves your device.
Privacy: this tool processes your data entirely in your browser. Nothing you paste or type is sent to the server.
Enter your values and press Calculate — the result appears here.
Worked examples
Frequently asked questions
Is my image uploaded to a server?
No. The image is read entirely in your browser using the FileReader API. Nothing is transmitted anywhere.
What is a Data URI?
A Data URI is a string that encodes file data directly in the URL format: data:{mimeType};base64,{data}. It can be used in HTML img tags, CSS, and more.
What formats are supported?
JPEG, PNG, WebP, and GIF images are supported for Base64 encoding.
How big will the Base64 output be?
Base64 encoding increases file size by approximately 33%. A 100KB image will produce roughly 133KB of Base64 text.
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