Image to Base64

Encode images to Base64 data URIs. Embed images directly in HTML/CSS without external files. 100% private.

100% Private No Account Needed Runs in Your Browser

Drop an image here or click to browse

About Image to Base64

Convert images to Base64-encoded data URIs. Useful for embedding small images inline in HTML emails, CSS backgrounds, or single-file web pages.

Instant Encoding

Upload any image and get its Base64 data URI instantly. Supports JPG, PNG, WebP, GIF, and SVG formats.

Inline Embedding

Perfect for embedding small images directly in HTML src attributes, CSS background-image URLs, or single-file web pages.

100% Private

FileReader API reads the image entirely in your browser. Zero bytes are sent to any server — your files stay local.

Copy and Download

Copy the data URI to clipboard with one click or download as a .txt file for use in your projects.

📋 Common Use Cases

Inline Image Embedding in HTML

Convert small icons and logos to Base64 strings to embed directly in HTML without separate image file requests.

CSS Background Image Optimization

Encode images as data URIs for CSS background properties to eliminate extra HTTP requests on page load.

Email Signature Graphics

Embed small images or logos as Base64 in email HTML signatures for reliable display across all email clients.

JavaScript Image Data Handling

Generate Base64 strings to store image data in JavaScript variables for canvas operations or dynamic rendering.

🪜 How to Use This Tool

Upload your image
Select any image file up to your browser's memory limit — JPG, PNG, WebP, GIF, and SVG are supported.

Encoding happens instantly
The image converts to a Base64 data URI string automatically with no buttons to click.

Copy the data URI
Click the copy button to copy the full data URI string to your clipboard, including the mime-type prefix.

Paste into your code
Use the data URI directly in HTML src attributes, CSS url() values, or JavaScript variables.

Frequently Asked Questions

Is this image tool really free?▼

Yes. Every image tool is completely free. No signup, no account, no payment. All processing happens in your browser.

Are my images uploaded to a server?▼

No. All image processing happens locally in your browser. Your images never leave your device. This is especially important for sensitive photos, IDs, and personal documents.

How does the AI background remover work?▼

It uses the @imgly/background-removal library running an IS-Net neural network entirely in your browser via WebAssembly. First use downloads a ~10MB model (cached for future visits). No image data is sent to any server.

What file formats are supported?▼

JPEG, PNG, WebP, SVG, GIF, BMP, and HEIC. Conversion between all formats is supported. AI features work on JPEG and PNG inputs.

What is the maximum image size?▼

Images up to ~4000x4000px process smoothly on modern devices. Very large images may be slower. For batch processing, up to 20 images at a time is recommended.