Image to Base64 Converter: Convert Photos to Data URIs
Convert PNG, JPG, and SVG images into embeddable Base64 data URI strings for HTML, CSS, and API payloads.
Privacy First: 100% Client-Side Processing
Processed in your browser. Files are never uploaded.
How to Use the Image to Base64 Converter: Encode Images to Data URIs
- 1Select your image file.
- 2The browser reads the file as a DataURL.
- 3Copy the generated Base64 string.
Formula & How It Works
RFC 4648 Base64 Data URI Scheme
Encodes 8-bit binary octets into 6-bit radix-64 ASCII characters.
Worked Examples
Embedding Small Icon
Input: icon.png (2 KB)
Explanation: Embeds icon directly in CSS without network request.
Frequently Asked Questions
Why does Base64 make files 33% larger?▼
Because 3 binary bytes (24 bits) are encoded using 4 ASCII characters (32 bits), adding a 4/3 overhead.
Quick Reference & Conversion Table
| Image Format | Data URI Prefix |
|---|---|
| PNG | data:image/png;base64, |
| JPEG | data:image/jpeg;base64, |
| WebP | data:image/webp;base64, |
| SVG | data:image/svg+xml;base64, |
⚠️ Common Pitfalls to Avoid
- •Encoding huge multi-megabyte photos (Base64 increases file size by roughly 33%).
💡 Practical Real-World Uses
- •Embedding small UI icons in CSS stylesheets to reduce HTTP roundtrips.
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