Image tools
Image to Base64
Encode an image file into a Base64 data string you can paste into code or a page.
Files you choose stay on your device — they are not uploaded to Tools99.
Workspace: 1. Add files2. Ready3. Working4. Done — download
How this workspace works
- Choose an image file.
- Encode it in your browser.
- Copy the Base64 data string into your code or page.
Your file never left this device, so there is no server copy to delete. Download again, start over, or continue with a related tool below.
How to use Image to Base64
- Choose an image file.
- Encode it in your browser.
- Copy the Base64 data string into your code or page.
A good use for this
Embedding a small image directly into HTML or CSS without a separate file.
Limits
Base64 makes the data about a third larger than the original file, so it is a poor choice for large images. It is encoding, not encryption — anyone can decode it.