Image to Base64 Encoder
Convert your images to Base64 strings instantly. Optimized for development workflows.
Drop your image here
Supports JPG, PNG, WebP up to 5MB.
Paste from clipboard also supported.
Waiting for image...
Instant
High-performance processing directly in your browser. Zero latency.
Secure
Your images never leave your device. All encoding happens locally.
Versatile
Standard compliant Base64 strings. Ready for HTML, CSS, or JSON.
What is Image to Base64 Encoder?
Base64 is a binary-to-text encoding scheme that represents binary data (like images) in an ASCII string format. It's commonly used to embed images directly into HTML or CSS files to reduce HTTP requests.
Formula & Calculation
The encoding process converts every 3 bytes of binary data into 4 characters of text from the Base64 set (A-Z, a-z, 0-9, +, /). This allows binary data to be reliably transferred over protocols that represent data as text.
Example Calculation
In HTML: <img src="data:image/png;base64,iVBORw0KGgoAAAANSuQmCC..." /> In CSS: background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSuQmCC...');
Frequently Asked Questions
?Does converting to Base64 compress the image?
No, it actually increases the file size by approximately 33%. It's strictly an encoding format, not a compression method.
?When should I use Base64 images?
Use them for small icons, logos, or placeholders to prevent layout shift and save HTTP requests. Avoid using them for large photographs as they can bloat your HTML size and slow down parsing.
?Is my image uploaded to a server?
No. All conversion happens locally in your browser using JavaScript. Your privacy is protected.