Image to Base64
Encode an image as Base64 / data URI for HTML and CSS.
Your files are processed locally in your browser and never uploaded.
How it works
- 1Choose a file or drop it onto the box.
- 2Set the options you want.
- 3Click the button — the result downloads automatically.
About this tool
Image to Base64: Encode an image as Base64 / data URI for HTML and CSS. Choose a file, adjust the options and download the result — the processing runs entirely in your browser, so your file is never uploaded to a server. No sign-up, no watermark.
How do I use the Image to Base64?
Choose a file or drop it onto the box. Set the options you want. Click the button — the result downloads automatically.
Is the Image to Base64 free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Are my files uploaded?
No. The file is processed entirely in your browser using WebAssembly and web APIs — it never leaves your device, which also makes it work offline once the page is loaded.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.