Image to Base64 Converter
Upload a PNG, JPG, or GIF image below to convert it into a Base64 string instantly.
What is Image to Base64 Conversion?
Converting an image to a Base64 string encodes the image data as text. This is commonly used to embed images directly into HTML, CSS, or JSON without needing external image files. Base64 strings start with data:image/png;base64,... and include all binary data encoded safely for web use.
Why Use ToolNexIn’s Image to Base64 Converter?
- Instant Encoding: Upload your image and get the encoded string in one click.
- Secure and Browser-Based: No uploads to server — everything runs in your browser.
- Multiple Format Support: PNG, JPG, JPEG, and GIF supported.
- Free Forever: No signup, no restrictions, completely free to use.
When to Use Base64 Encoding for Images?
- Embed images directly into emails or newsletters
- Inline image inclusion in CSS or HTML without external assets
- Use inside JSON payloads or APIs
- Offline or local web project development
How It Works
When you upload an image, it is read using the FileReader API and converted to a Base64-encoded string. This string can then be used in any compatible application or code.
Example:
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA...
FAQs
1. Is my image uploaded to your server?
No. This tool runs entirely in your browser using JavaScript. Your image never leaves your device.
2. What file types are supported?
This tool supports PNG, JPG, JPEG, and GIF image formats.
3. Can I use the Base64 output in HTML?
Yes. You can paste the Base64 string into an <img src="..."> tag to display the image.
Disclaimer
This tool is designed for small-to-medium images only. Large images may cause memory or browser performance issues depending on your system.
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