How to use Image to Base64
- Drop an image onto the page.
- Wait a moment while it is encoded in your browser.
- Copy the Base64 text or the full data URI.
- Paste it into your HTML, CSS or JSON.
Why use this tool
Base64 turns the bytes of a picture into plain text. That text can sit directly inside an HTML page, a stylesheet or a JSON message, so no separate image file is needed. It is handy for tiny icons, email templates, single-file demos and APIs that only accept text.
Tips for best results
- Use it for small images only. Base64 makes the data about a third bigger.
- A full data URI starts with data:image/png;base64, followed by the encoded text.
- Compress or resize the picture before encoding to keep the text short.
Frequently asked questions
Is Base64 a kind of encryption?
No. It is just a way of writing data as text and anyone can decode it, so never use it to hide anything.
Should I embed large photos this way?
Usually not. Large Base64 strings slow the page down and cannot be cached separately like normal image files.
Is my image sent to a server?
No. The encoding happens locally in your browser.