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All processing happens in your browser. Images never leave your device.
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Instant conversion with real-time preview and multiple output formats.
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What is Base64 Encoding?
✨ What is Base64?
Base64 is a binary-to-text encoding scheme that converts binary data (like images) into ASCII text format. It uses 64 different characters (A-Z, a-z, 0-9, +, /) to represent binary data.
This encoding is commonly used to embed images directly in HTML, CSS, or JSON files, eliminating the need for separate image files.
🎯 Common Use Cases
- • Embedding small icons in CSS files
- • Including images in JSON API responses
- • Reducing HTTP requests for small images
- • Email templates with embedded images
- • Data URIs in web applications
Frequently Asked Questions
What is the maximum file size I can convert?
There's no hard limit, but keep in mind that Base64 encoding increases file size by approximately 33%. For web use, it's recommended to keep images under 100KB to avoid performance issues.
Are my images stored on your servers?
No, absolutely not! All image processing happens entirely in your browser using JavaScript. Your images never leave your device, ensuring complete privacy and security.
What's the difference between Base64 and Data URI?
Base64 is just the encoded data, while a Data URI includes the MIME type and encoding information (e.g., "data:image/png;base64,"). Data URIs can be used directly in HTML and CSS.
Can I convert animated GIFs?
Yes! Animated GIFs can be converted to Base64, and the animation will be preserved when the Base64 data is used in HTML or CSS.
Why would I use Base64 encoding for images?
Base64 encoding is useful for embedding small images directly in HTML/CSS files, reducing HTTP requests, including images in JSON APIs, and ensuring images are always available without external dependencies.
Does Base64 encoding affect image quality?
No, Base64 encoding is lossless. The image quality remains exactly the same. However, the file size increases by about 33% due to the encoding overhead.