This tool converts an image you select into a Base64 data URI — a text string you can embed directly in HTML or CSS, avoiding a separate file request. The image is read locally in your browser and never uploaded.
How to use it
- Choose an image file from your device.
- The Base64 data URI is generated instantly.
- Copy the data URI, or the ready-made <img> or CSS snippet.
About Image to Base64 Converter
Embedding a small image as a Base64 data URI removes an HTTP request, which can speed up loading for tiny assets like icons and inline logos. It is also handy for self-contained HTML emails and single-file demos. The trade-off is that Base64 inflates size by about a third and is not cached separately, so it suits small images, not photos. This converter reads the file locally with the FileReader API — your image is never sent anywhere — and gives you the data URI plus ready HTML and CSS snippets.
FAQ
Is my image uploaded?
No. The image is read locally in your browser with the FileReader API and never leaves your device.
When should I use a data URI?
For small images like icons, where avoiding an extra request helps. For larger images, a normal file is better because Base64 increases size and is not cached separately.
Which formats work?
Any image your browser can read — PNG, JPEG, GIF, SVG, WebP and more.