Step 01: Upload an image
Upload an image that should become a text data representation.
Free · No signup · Data URI
Upload a file, copy the base64 string, and use it in your code — free, no account, no watermark.
Full data URI string with size stats and one-click copy
Drag & drop files here
Or click to browse (up to 15 MB)
Turn an image into a portable data URL for HTML, CSS, or notes.
Upload an image that should become a text data representation.
Create the Base64 representation through the server image conversion path.
Copy or download the encoded output for a web or document workflow.
I built it when a project needs an image string instead of a separate asset file.
It can make quick HTML or CSS examples much easier to carry into a page or notes area.
The workflow is useful for prototypes and short embed scenarios.
It keeps the source image available as a portable text value for faster testing.
See what Image to Base64 is built to change — static marketing mock, not a live edit.
Image file
Base64 string
Embed tiny icons without a separate asset host.
Carry small images as text when needed.
Share a portable asset string in docs.
Inline a background without uploading.
Formats, processing, and practical limits for this tool.
Base64 data URLs are larger than a normal image file and can grow the HTML or CSS file size. They are best for small assets and demos rather than large image libraries.
Straight answers about this tool — privacy, formats, limits, and how processing works.
ImageToolkit returns a ready-to-paste data_uri string in the form data:<media_type>;base64,... — the same value you copy from the result box for use as an HTML/CSS image source. The response also includes media_type, byte size, and character count.
The string length depends on image size. A 1KB image becomes ~1.3KB in base64. Large images create very long strings unsuitable for URLs.
Yes, but some email clients block base64 images. Test with your provider first, or use a hosted image URL instead.
No. Base64 is an encoding method, not compression. The image data remains identical, just represented as text.
Paste it as the src attribute in an <img> tag: <img src="data:image/png;base64,...">. Replace the dots with your full string.