Image to Base64 Converter
Convert an image to a Base64 data URI string. Free, fast and private.
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How to use Image to Base64 Converter
- Click “Choose image” and pick any JPG, PNG, GIF or WebP file.
- Click “Convert to Base64” — the full data URI appears in the box below.
- Click “Copy Base64” to copy the whole string to your clipboard.
- Paste it into your HTML, CSS or code wherever a data URI is needed.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
Is this tool free?
Yes, it is 100% free with no sign-up. There are no limits on how many times you can use it.
What is a Base64 data URI?
It is the image itself written as a long text string, starting with data:image/png;base64,. You can paste it straight into an tag or a CSS file instead of linking to a separate image file.
Is my data uploaded to a server?
No. This tool runs entirely in your browser. Your files are never uploaded to a server and never leave your device.
Why is the Base64 string bigger than my image?
Base64 encoding adds about 33% to the file size. It is handy for small images and icons, but for large photos it is better to link to the image file normally.