Free Online Image ↔ Base64 Converter
Encode images to Base64 strings or decode Base64 back to images. Perfect for embedding images in HTML, CSS, or JSON. No registration required.
100% secure. All encoding and decoding happens in your browser. Files never leave your device.
Frequently Asked Questions
Is this Base64 converter free?
Yes! Completely free with no fees, watermarks, or registration. Encode and decode unlimited images.
What is Base64 encoding?
Base64 is a way to represent binary data (like images) as text strings. It's commonly used to embed images in HTML, CSS, or APIs.
Does Base64 increase file size?
Yes, Base64 encoding increases size by about 33%. A 100KB image becomes ~133KB as Base64. Use for small images only.
Can I decode any Base64 string?
You can decode any valid Base64 image string. Supported formats: PNG, JPG, GIF, WebP, and more.
Where is the conversion done?
All encoding and decoding happens in your browser using JavaScript. Your images never leave your device for maximum privacy.