Why use Base64 for images?

Base64 lets you embed images directly in HTML/CSS/JSON, reducing HTTP requests and simplifying deployment.

Does Base64 increase file size?

Yes, Base64 encoding increases size by about 33%. It is best for small images like icons.

What formats are supported?

All common image formats: JPG, PNG, GIF, WebP, BMP, SVG, and ICO.

Image to Base64

Free online image to Base64 converter. Convert any image to Data URL or raw Base64 string. Perfect for embedding images in HTML, CSS, or JSON. All processing happens in your browser.

100% Private (In-Browser)Instant Web Worker SpeedZero Server Upload

Image to Base64 by Privacy-First Toolbox is a 100% free, client-side browser utility. It processes your files locally on your computer or smartphone using HTML5 and Web Workers—zero bytes of your files or data are ever uploaded to any external server.

Drop your file here, or click to browse

Max file size: 10MB. Fast local processing.

.jpg.jpeg.png.gif.webp.bmp.svg.ico

Never leaves your device

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Tip: Press⌘Vto paste from clipboard

Key Features

Data URL output
Raw Base64 string
HTML img tag
CSS background code
Copy & download
100% private

Common Use Cases

Embed in HTML/CSS
Store in databases
Send via APIs
Reduce HTTP requests

How to Use Image to Base64

Three simple steps to process your files securely in browser.

Select Your File

Drag and drop or browse your local file into the secure tool workspace.

Configure Options

Set quality, output format, or formatting options for your task.

Instant Download

Save your processed output immediately with zero server upload.

Frequently Asked Questions

🔒100% Client-Side: Your files never leave your device.

More Image Tools

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Image Resizer

Resize images online free. Change photo dimensions by pixels, percentage, or social media presets. No upload required.

JPG to PNG

Convert JPG images to PNG format with transparency support

JPG to WebP

Convert JPG to WebP for smaller file sizes and faster websites

PNG to JPG

Convert PNG images to JPG format for smaller file sizes

PNG to WebP

Convert PNG to WebP for optimized web images with transparency

WebP to PNG

Convert WebP images to universally compatible PNG format

WebP to JPG

Convert WebP images to widely supported JPG format

BMP to PNG

Convert BMP bitmap images to compressed PNG format

GIF to PNG

Convert GIF images to PNG with better color depth

GIF to JPG

Convert GIF images to JPG format for universal compatibility

GIF to WebP

Convert GIF images to modern WebP format

BMP to JPG

Convert BMP bitmap images to compressed JPG format

BMP to WebP

Convert BMP bitmap images to modern WebP format

SVG to PNG

Convert SVG vector graphics to PNG bitmap images

SVG to JPG

Convert SVG vector graphics to JPG for universal sharing

SVG to WebP

Convert SVG vector graphics to modern WebP format

ICO to PNG

Convert Windows ICO icon files to PNG format

Image Metadata Viewer

View detailed metadata and properties of your images

Base64 to Image

Convert Base64 strings back to image files