Base64 Image & Data URI Converter
Convert between raw Base64 strings, Data URIs, HTML <img> tags, and CSS background rules with automatic MIME detection.
Batch workspace
Format multiple files locally in one run.
How to use the Base64 Image & Data URI Converter
Paste code or file
Paste your raw TEXT text or upload directly.
Configure options
Choose indentation, dialect, or formatting preferences.
Format & export
Click format, then copy, download, or inspect in tree view.
What is a Base64 Image & Data URI Converter?
Convert between raw Base64 strings, Data URIs, HTML <img> tags, and CSS background rules with automatic MIME detection. This tool re-indents and organizes code according to standard style conventions while checking for syntax validity. Everything executes 100% inside your browser, guaranteeing zero latency and complete privacy for API keys, user tokens, and confidential database schemas.
Options Explained
| Option | Description |
|---|---|
| Output Format | Select desired conversion target format. |
Frequently Asked Questions
What image formats are supported?
PNG, JPEG, GIF, WebP, and SVG formats are automatically detected from their binary magic headers.
Are my images uploaded to any remote server?
No. All Base64 encoding and metadata inspection run 100% client-side in your browser.
Is my data uploaded when I use the Base64 Image & Data URI Converter?
No. All processing runs entirely in your browser. Nothing is sent to a server unless you explicitly create a share link.
Does this tool work offline?
Yes. After the first visit, the PWA service worker can serve the page and run the formatter without a network connection.
What is the maximum input size?
Most tools accept up to about 5MB in the editor. Very large inputs are processed preferentially in a Web Worker and may download instead of filling the output pane.