Does Base64 increase file size?

Yes, Base64 encoding typically increases file size by about 33%. It's best used for small images like icons or logos.

Is the conversion secure?

As secure as it gets. The conversion happens entirely on your device using JavaScript.

No. Base64 is a lossless encoding. The decoded image is bit-for-bit identical to the original.

Convert images to Base64 encoded strings for embedding in HTML, CSS, or JSON.

Drag & Drop Upload

Data URL Output

Base64 String Output

Copy to Clipboard

File Info Display

Upload Image: Drag and drop your file or click the upload area. Supports common formats like PNG, JPG, GIF, and SVG.
Get Data URL: Copy the "Data URL" string to use directly in HTML <img src="..."> or CSS background-image.
Get Base64 String: Copy the raw Base64 string if you need just the encoded data without the prefix.

Reduce Requests: Embedding small images (like icons) directly in HTML/CSS reduces the number of HTTP requests, speeding up page load.
Email Signatures: Ensure images in your email signature always load by embedding them directly.
Single-File Projects: Creating self-contained HTML files where external assets aren't allowed.