Tool overview
What is an Image ↔ Base64 Converter?
An image ↔ Base64 converter turns image files into data URIs and decodes Base64 back to a previewable image.
Why use this Image Base64 tool?
Inline small assets or debug data-URI payloads locally without uploading images to a conversion host.
Key Features
Drag-and-drop encode/decode, data URI output, preview, and fully local FileReader processing.
How to Use
Follow these steps to get accurate results from the tool interface above.
- Drag and drop an image or pick from disk.
- Copy data URI for inline HTML/CSS or decode Base64 back to preview.
- Watch output size—large images inflate HTML payload.
Data URI Format
Structure of emitted Base64 image URIs.
| Token Type | Valid Standard Format | Malformed Input |
|---|---|---|
| PNG data URI | data:image/png;base64,iVBOR… | data:image/png;base64,!!!Invalid Base64 breaks img src rendering. |
| MIME prefix | data:image/jpeg;base64, | data:base64,MIME type required for browser decode. |
Security Profile
Images process locally. Data URIs are not encryption—anyone with HTML can decode the image.
Frequently Asked Questions
Expandable answers for common debugging bottlenecks and data privacy questions.
Related tools
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Official Documentation & References
Authoritative specifications and platform documentation for this utility.