★ Free Image Tool
Image to Base64
Encode an image as a Base64 data URI for HTML, CSS or JSON.
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Runs entirely in your browser. Your files and text are never uploaded to our server.
About this toolImage to Base64 converts a small image into a text string you can paste directly into HTML or CSS, avoiding an extra file request.
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Image to Base64 converts a small image into a text string you can paste directly into HTML or CSS, avoiding an extra file request.
More about Image to Base64How to use, good to know & FAQ
How to use Image to Base64
- Choose or drop an image.
- Copy the data URI, the ready-made HTML img tag, or the CSS background rule.
Good to know
- Base64 text is about a third larger than the image file, so use it for icons and small graphics only.
Frequently asked questions
Are my images uploaded?
No. Encoding happens in your browser on your device.
When should I use Base64 images?
Use them for very small images; large Base64 images make pages heavier than normal files.
What format is the output?
You get a data URL such as data:image/png;base64,… ready to paste.
When to use Image to Base64
- Embed small icons directly in CSS
- Inline images in HTML emails
- Store tiny images inside JSON or config files
- Test image data in APIs
📘 Read the guide: How to Compress Images Without Losing Quality (JPG, PNG & WebP)