Image to Base64
Convert an image to a Base64 data URL.
Sign in to use this tool
Create a free account to unlock every tool — plus a 14-day free trial of HQ Pro, no card required.
About the Image to Base64
Convert an image to Base64 free — upload any picture and get the data URL, plus ready-to-paste CSS (background-image) and HTML (<img>) snippets. Inlining small icons and logos as Base64 saves HTTP requests and keeps single-file HTML documents, emails, and prototypes self-contained. Encoding happens in your browser, so nothing is uploaded.
How to use the Image to Base64
- 01Upload or drop an image.
- 02Choose Data URL, CSS, or HTML output.
- 03Copy the Base64 string for inline use.
Frequently asked questions
When should I inline images as Base64?
Base64 inlining suits tiny icons and assets to save HTTP requests. For large images it bloats your HTML and hurts caching.
Does it work offline?
Yes — encoding runs entirely in your browser.
Why is the Base64 string bigger than my image?
Base64 adds ~33% overhead by design (3 bytes become 4 characters). That's the trade-off for embedding binary data as text.