Image to Base64 Converter
Image to Base64 Converter encodes an image as a Base64 data URI you can paste directly into CSS or HTML, entirely in your browser.
No upload Instant Free No sign-up
How to convert an image to Base64
- 1 Click the upload box and choose an image.
- 2 The Base64 data URI appears instantly in the output box.
- 3 Copy it and paste directly into your CSS (background-image: url(...)) or HTML (<img src="...">).
Frequently Asked Questions
- Does this upload my image anywhere?
- No — encoding happens entirely in your browser.
- When should I use a Base64 data URI instead of a regular image file?
- Useful for very small icons/images where you want to avoid an extra HTTP request, or for embedding images directly in CSS/HTML/JSON. Avoid it for large images — Base64 encoding increases file size by roughly 33%.