Image to Base64
Convert images to Base64 online — free, fast, private. Supports PNG, JPG, WebP, GIF, SVG, BMP, ICO. All processing happens in your browser, no data is uploaded.
Image to Base64
Convert images to Base64 or data URIs. All processing is done locally in your browser.
Drop image or click to browse
PNG, JPG, WebP, GIF, SVG, BMP, ICO
How to use
- Drop an image into the upload area or click to browse your files.
- Your image preview appears on the left. The Base64 output is generated instantly.
- Toggle between Base64 (raw string) and Data URI (full embed-ready format).
- Click Copy to copy the result to your clipboard.
Features
- Supports PNG, JPG, WebP, GIF, SVG, BMP, ICO, and other browser-readable image formats.
- Output as raw Base64 string or full Data URI with MIME type prefix.
- One-click copy to clipboard — paste directly into HTML, CSS, or JSON.
- No upload, no signup, no server-side processing. Everything runs locally in your browser.
- Drag and drop or file picker — both work seamlessly.
Frequently asked questions
Common questions about converting images to Base64 with our local browser tool.
What is Base64 image encoding?
Base64 encoding converts binary image data into a text string of ASCII characters. This lets you embed images directly in HTML, CSS, or JSON — without needing a separate image file or URL.
What's the difference between Base64 and Data URI?
The Base64 output is just the raw encoded string (e.g., iVBORw0KGgo...). The Data URI includes the MIME type prefix (e.g., data:image/png;base64,iVBORw0KGgo...), making it ready to use in src attributes or url() values.
Are my images uploaded to imgi.io?
No. This tool processes everything locally in your browser using the FileReader API. Your images never leave your device.
What's the maximum file size?
The tool handles images up to 10 MB. Larger images may be slow to encode and produce very long Base64 strings. For optimal performance, we recommend images under 5 MB.
Which image formats are supported?
Any image format your browser can decode is supported: PNG, JPG, WebP, GIF, SVG, BMP, ICO, and more. The tool uses the browser's built-in image decoder.