Developer Tools
Base64 Image Encode / Decode
FreeNo SignupPrivate — runs in your browser
Encode images to Base64 or decode Base64 to images online for free. Generate data URIs for HTML and CSS. No signup required.
What is Base64 Image Encode / Decode?
Embedding images directly into code using Base64 data URIs eliminates extra HTTP requests and simplifies deployment. Our free Base64 Image Encoder/Decoder handles both directions — upload any image to get its Base64 string, or paste a Base64 string to recover the original image. Toggle data URI prefixes and copy with one click.
How to Use Base64 Image Encode / Decode
- 1Choose encode or decode mode
- 2Upload an image to encode, or paste Base64 to decode
- 3Toggle data URI prefix option if encoding
- 4Copy the Base64 string or download the decoded image
Key Features & Benefits
Encode any image to Base64
Decode Base64 back to images
Data URI prefix toggle
Instant copy and download
Frequently Asked Questions
What image formats are supported?
All common formats: PNG, JPG, GIF, WebP, SVG, BMP, and ICO.
What is a data URI?
A data URI embeds image data directly in HTML/CSS using a base64-encoded string, eliminating the need for a separate image file request.
Can I decode Base64 back to an image?
Yes, paste any Base64 image string (with or without the data URI prefix) and download the decoded image.