完整小案例
Image Data URL example
输入: logo.png
操作: Upload the image and copy the Data URL
输出: data:image/png;base64,iVBORw0KGgo...
图片转 Base64
将图片文件转换为 Base64 或 Data URL，用于 CSS、HTML、邮件模板和 API 测试。
适用输入类型
- PNG, JPEG, SVG, or supported image files
- Small icons and inline assets
- Images prepared for Data URL usage
操作步骤
- Open the image Base64 workspace.
- Upload an image file from your device.
- Copy the Data URL or raw Base64 result.
- Use the result in CSS, HTML, templates, or a test payload.
本场景常见问题
Large files create long strings
Use Base64 for small assets; large images can bloat HTML or CSS.
Data URL vs raw Base64
Data URL includes the MIME prefix; raw Base64 only contains the encoded data.
Preview before sharing
Check the preview to make sure the encoded image still matches the source.
相关场景
图片转 Base64 常见问题
When should I use image Base64?
Use it for small inline assets, email templates, demos, or quick API tests.
Should I use Data URL or raw Base64?
Use Data URL for browser rendering and raw Base64 when a system requests only encoded data.
Can large images be converted?
They can, but the resulting text becomes very long and may hurt performance.