Image to Base64
Convert any image to a Base64-encoded data URI for embedding directly in HTML, CSS, or JSON. Supports JPEG, PNG, GIF, WebP, and SVG. Copy the CSS background-image snippet with one click.
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Drop an image or click to browse
Frequently Asked Questions
When should I use Base64 images?
Inline small images (icons, logos <5KB) directly in HTML/CSS to eliminate HTTP requests. Inline CSS background images in email templates (many email clients block external images). Storing images in JSON/APIs. For large images, Base64 is inefficient — use regular URLs instead.
Why does the Base64 size have overhead?
Base64 encoding converts 3 bytes of binary data to 4 ASCII characters — a 33% size increase. This is why Base64 images increase page weight. Only use inline Base64 for small images where the HTTP request savings outweigh the size cost.