Image to Base64

Convert any image to a Base64 data URI - instantly, in your browser. No uploads, no servers.

Drop image(s) here

PNG, JPG, GIF, WebP, SVG, BMP, ICO, AVIF - any image format

Browse files

Processed entirely in your browser · No data is uploaded

Converting...

How to use

Drop your image onto the upload area, or click to pick a file.
The image is converted to Base64 instantly in your browser.
Copy the data URL or just the Base64 payload.
Use the size preview to check the encoded length before embedding.
Switch between data URL and raw modes depending on where you will paste it.

Frequently asked questions

Is my image uploaded anywhere?

No. The conversion happens entirely in your browser using the FileReader API. The bytes never leave your device.

When should I embed images as Base64?

For small icons, logos, or tracking pixels under about 4 KB. Above that, the 33% size penalty and lack of caching usually outweigh the saved HTTP request.

What file types are supported?

Anything the browser can read, including PNG, JPG, WebP, GIF, SVG, BMP, and ICO. Output format follows the input MIME type.

Why is the Base64 string so much longer than the file?

Base64 represents every 3 bytes with 4 characters, so encoded output is roughly 33% larger than the binary file size, plus a small MIME prefix.