图片Base64转换器

将图片转换为Base64编码字符串，用于嵌入HTML、CSS或JavaScript。

拖放图片或点击上传

支持PNG、JPEG、GIF、WebP、SVG、BMP、ICO（最大5MB）

所有转换在浏览器中完成，图片不会上传到服务器。

How to Use This Tool

  1. 1

    Upload an image

    Drag and drop or click to select a file.

  2. 2

    Choose output format

    Select Data URI or Raw Base64.

  3. 3

    Copy the result

    Copy as base64, HTML, or CSS background.

  4. 4

    Use in your project

    Paste into your HTML, CSS, or JavaScript.

Frequently Asked Questions

What is Base64?
An encoding that converts binary data to ASCII text for embedding in code.
Why size increase?
3 bytes become 4 characters, about 33% larger.
When to use Base64?
Small images, icons, email templates, single-file documents.
Is my data secure?
Yes. All in browser. No uploads.