Base64 Encoder & Decoder
Convert images to Base64 data URLs for embedding in HTML/CSS, or decode Base64 back to images.
Drag & drop your file here
or click to browse
Supports SVG • Max 50 MB
How to Use This Tool
- 1
Choose Encode or Decode mode
- 2
Upload an image or paste a Base64 string
- 3
Copy the result or download the decoded image
Frequently Asked Questions
Base64 is a way to represent binary data (like images) as text. This allows you to embed images directly in HTML or CSS without separate files.
Yes, Base64 encoding increases data size by approximately 33%. This tool shows you the exact size difference.
Use Base64 for small images (icons, logos) to reduce HTTP requests. For large images, regular files are more efficient.