Convert your images to Base64 strings instantly. Embed images directly in HTML, CSS, or JSON — perfect for icons, logos, and small graphics.
Supports JPG, PNG, WebP, BMP, GIF, SVG • Up to 50MB • Convert to Base64 string
Your images are processed locally in your browser — completely private and secure
Base64 encoding offers powerful benefits for developers and designers
Embed images directly in HTML/CSS — no extra file downloads needed
Embed images in HTML emails without external attachments
Store images in JSON, databases, or configuration files
Embed multiple images as Base64 in CSS for complex designs
Common scenarios where Base64 encoding is the perfect solution
Embed images directly in email HTML without external hosting — ensures images display even when email clients block external content.
Store small images as Base64 in app code or configuration for offline access without file management.
Embed background images directly in CSS files — perfect for icons, patterns, and small UI graphics.
Export images as Base64 strings in CSV, JSON, or XML for data portability.
Display image previews without uploading to server — great for form builders and editors.
Create single-file HTML documents with all images embedded — perfect for documentation and demos.
Understanding the trade-offs helps you make the right decision
💡 Best practice: Use Base64 for images under 10KB (icons, logos, small UI elements). For larger images, use traditional file hosting.
Everything you need to know about Image to Base64 conversion
Base64 is a method of converting binary data (like images) into ASCII text format. This allows binary data to be transmitted over text-based protocols like HTTP, HTML, CSS, and JSON without corruption.
Use the data URL format: <img src="data:image/png;base64, YOUR_BASE64_STRING" />. Our tool provides this format when you select "Data URL" output option.
Use background-image: url("data:image/png;base64, YOUR_BASE64_STRING"); This is perfect for icons, patterns, and small UI graphics.
Base64 uses a 64-character encoding scheme that requires more bytes to represent the same data. The overhead is approximately 33% of the original binary size. This is normal and expected.
We support all major formats: JPG, PNG, WebP, BMP, GIF, and SVG. The output Base64 will include the correct MIME type for each format.
Yes, absolutely. Your images are processed entirely in your web browser. We never upload, store, or share your images on any server. Your data stays on your computer.
We support images up to 50MB. However, for practical use, Base64 is best for images under 100KB. Large Base64 strings can slow down your applications.
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