What is a base64 data URL?

A data URL embeds the image data directly in the URL string (e.g. data:image/png;base64,...). This lets you include small images in HTML, CSS, or JSON without an external file request.

Should I embed all images as base64?

No. Base64 adds about 33% to file size. For small icons and UI graphics it is great. For large photos, link to the file instead.

Can I decode a base64 string back to an image?

Yes. Switch to the Base64 → Image tab, paste your base64 string (with or without the data: prefix), click Render, then download the decoded image.

What formats are supported?

PNG, JPG, WEBP, GIF, SVG, and any other format your browser supports.

Image Base64 Encoder

Encode images to base64 data URLs, or paste base64 to render and download.

Click to upload or drag and drop

PNG, JPG, WEBP, GIF, SVG

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