Question 1

What is Base64 encoding?

Accepted Answer

Base64 is a method of encoding binary data (like images) into an ASCII string format. It is commonly used to embed small images directly within HTML, CSS, or JSON to avoid additional HTTP requests.

Question 2

Why convert an image to Base64?

Accepted Answer

Converting an image to Base64 reduces the number of HTTP requests a webpage needs to make, which can improve loading speed (especially for small icons). It also makes it convenient to use image data directly within email templates, mini-programs, or front-end code.

Question 3

Does this tool save my images or Base64 data?

Accepted Answer

No. All conversions are performed temporarily in the server's memory. Files are retained only for a few minutes to allow for download and are then automatically deleted. We do not store or log any user data.

Question 4

What image formats are supported?

Accepted Answer

Currently, PNG and JPG/JPEG formats are supported. After upload, the tool automatically identifies the MIME type and generates the correct Base64 Data URL.

Question 5

Can I download the image after Base64 conversion?

Accepted Answer

Yes! After a successful conversion, a preview image will be displayed, and a "Download Image" button will be provided, allowing you to save the file as PNG or JPG with one click.

图片格式转换 - 万能在线图片转换器(JPG/PNG/WebP等)

to image

to base64 string