Base64.imBase64 Online Encoding and Decoding(The best Base64 online tool)
FAQ
1. Why is the maximum file size limited to 1MB?
We limit the size of each file to 1MB for the following reasons:
Resource limitations: This service is free and hosted on private servers with limited server resources. We have upgraded our servers to support multiple file uploads and image optimization, but we still need to limit the size of individual files.
Browser compatibility: Some hardware or browsers cannot handle Base64 strings that are too large, which may cause the encoded images to not display properly.
Common use cases: For most "normal" use cases (such as encoding icons or image sprites), the 1MB limit is more than enough. In fact, more than 99.9% of uploaded files are less than 100KB in size.
Need support for larger files?
If you do need to handle larger images, please contact us and we will do our best to help you find a suitable solution.
2. Will my files be saved permanently?
No.
We take user privacy very seriously, and images are only stored temporarily and deleted immediately after processing. Here is the process:
①. The image is uploaded to a temporary folder.
②. The system reads the image data and encodes it into a Base64 string.
③. Image metadata (such as size and MIME type) is read and only used to display in the results and is not stored.
④. The image file is deleted immediately.
We do not store your file name, geolocation data, or any other private information.
3. Why can't my images be displayed on IE8?
This is due to a limitation of Internet Explorer 8:
IE8 has limited support for Base64 string size (up to 32KB). If the string exceeds this limit, the browser will not be able to display the image correctly.
IE9 has improved support to 4GB, but you still need to be careful about the size of the encoded string.
**Solution**:
Try to make sure the Base64-encoded image size is small enough (less than 32KB).
Use a modern browser for better compatibility and performance.
4. Why does drag and drop not work in IE8 and IE9?
IE8 and IE9 do not support the drag and drop feature that is widely used by modern browsers. We recommend the following workarounds:
Use a single file upload form: For older browsers, you can still handle images through the traditional file upload button.
Upgrade your browser: Use a more modern browser (such as Chrome, Edge, or Firefox) to enjoy more complete feature support.
Although only about 0.5% of users use these outdated browsers, we do our best to provide basic functionality support for all users.
5. How can I ensure my Base64 images are compatible with all devices?
When using Base64 encoded images, please keep in mind the following points:
File size control: Avoid using image files that are too large, as the encoded string will grow significantly, which may affect performance or cause some browsers to be unable to parse it.
Test compatibility: Test your encoded images on multiple devices and browsers to ensure consistent display.
HTML and CSS examples:
In HTML:
<img src="data:image/jpeg;base64,/9j/4RiDRXhpZgAATU0AKgA..." width="100" height="50" alt="base64 test">
In CSS:
.my-class {
background: url('data:image/jpeg;base64,/9j/4RiDRXhpZgAATU0AKgA...');
}
6. Does my browser or hardware support large Base64 strings?
Support may vary by device or browser:
Modern browsers (e.g. Chrome, Firefox, Edge) support larger Base64 strings.
Older devices or browsers may have memory limitations and may not be able to load large strings.
It is recommended to keep the file as small as possible to ensure best compatibility.
If you have further questions, please contact support at
[email protected]!